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Open-Shell Oligomers and Polymers: Theory, Characterization Methods, Molecular Design, and Applications Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2024-04-01
Abstract Open-shell oligomers and polymers have exhibited intriguing electronic and magnetic properties, making them highly desirable for a wide range of applications, including ambipolar organic field-effect transistors (OFETs), photodetectors, organic thermoelectrics, and spintronics. Although open-shell ground states have been observed in certain small molecules and doped organic semiconductors
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Exploring the Interplay between Local Chain Structure and Stress Distribution in Polymer Networks Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2024-03-07 Jin-Tong Xue, Yang Bai, Li Peng, Xian-Bo Huang, Zhao-Yan Sun
The mechanical behavior of polymer networks is intrinsically correlated with the local chain topology and chain connectivity. In this study, we delve into this relationship through the lens of coarse-grained molecular dynamics (CG-MD) simulations. Our aim is to illuminate the intricate interplay between local topology and stress distribution within polymer monomers, cross-linkers, and various components
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Effect of Phase Separation Size on the Properties of Self-healing Elastomer Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2024-03-07
Abstract Regulation of phase structure has been recognized as one of the most effective ways to fabricate self-healing polymers with high mechanical strength. The mechanical properties of the resultant polymers are certainly affected by the size of separated phase domain. However, the study on this aspect is absence, because it can hardly exclude the influence of variation in monomer proportion required
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The Crystallization Behavior of L-Poly(lactic acid)/Polypropylene Blends: The Acceleration for Both L-Poly(lactic acid) and Polypropylene Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2024-03-07 Shuang-Cheng Li, Wei-Jia Zhou, Wen-Jie Wu, Jun Shao, Shui-Liang Chen, Hao-Qing Hou, Sheng Xiang
For a polymer/polymer dismissible blend with two crystallizable components, the crystallization behavior of different components and the reciprocal influences between different crystals are interesting and important, but did not investigate in detail. In this study, the L-poly(lactic acid)/polypropylene (PLLA/PP) blends with different weight ratios were prepared by melt mixing and the crystallization
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High Impact Polylactide Based on Organosilicon Nucleation Agent Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2024-03-07 Daria Pakuła, Bogna Sztorch, Eliza Romańczuk-Ruszuk, Bogdan Marciniec, Robert E. Przekop
Various sectors of the industry are searching for new materials with specific requirements, providing improved properties. The study presents novel composite materials based on polylactide that have been modified with the organosilicon compound, (3-thiopropyl) polysilsesquioxane (SSQ-SH). The SSQ-SH compound is a mixture of cage structures and not fully condensed random structures. The composite materials
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Polyelectrolyte Complexes and Coacervates Formed by De novo-Designed Peptides and Oligonucleotide Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2024-03-04
Abstract The liquid-liquid phase separation of biopolymers in living cells contains multiple interactions and occurs in a dynamic environment. Resolving the regulation mechanism is still a challenge. In this work, we designed a series of peptides (XXLY)6SSSGSS and studied their complexation and coacervation behavior with single-stranded oligonucleotides. The “X” and “Y” are varied to combine known
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Triclosan-conjugated, Lipase-responsive Polymeric Micelles for Eradication of Staphylococcal Biofilms Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2024-03-04
Abstract Bacterial biofilms present a significant challenge in treating drug-resistant infections, necessitating the development of innovative nanomedicines. In this study, we introduce triclosan-conjugated, lipase-responsive polymeric micelles designed to exploit biofilm properties and serve as a responsive drug delivery platform. The micelles were created using an amphiphilic block polymer synthesized
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Light-responsive Self-Immolative L-glutamic Acid-based Polyester Nanoparticles for Controlled Drug Release via Passerini Three-Component Polymerization Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2024-03-04
Abstract L-glutamic acid (LA) is a bio-based, non-toxic, environmentally friendly material derived from biomass. The present study reports the application of Passerini three-component polymerization (P-3CP) for the straightforward preparation of LA-based light-responsive polyesters (PLTDs) under mild conditions. PLTDs with molar masses up to 8500 g/mol and high yields exceeding 90% are obtained. The
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Surface Polarization Effects on Collapse Transition of Polyelectrolyte Brushes Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2024-03-01
Abstract Polyelectrolyte brushes (PEBs) are commonly used to modify surface that have attracted great research interest. The dielectric permittivity of the grafted surface is typically significantly different from that of solution, which results in surface polarization (SP) effect with a jump of electric field. It is thus important to study how SP alters the PEB’s structure and properties. In this
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A Dynamic Covalent Bonding-based Nanoplatform for Intracellular Co-Delivery of Protein Drugs and Chemotherapeutics with Enhanced Anti-Cancer Effect Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2024-02-28 Sai-Nan Liu, Jia-Hui Meng, Li-Yun Cui, Hua Chen, Lin-Qi Shi, Ru-Jiang Ma
Efficient intracellular delivery of protein drugs is critical for protein therapy. The combination of protein drugs with chemotherapeutics represents a promising strategy in enhancing anti-cancer effect. However, co-delivery systems for efficient delivery of these two kinds of drugs are still lacking because of their different properties. Herein, we show a well-designed delivery system based on dynamic
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Lightweight, Strong and High Heat-Resistant Poly(lactide acid) Foams via Microcellular Injection Molding with Self-Assembly Nucleating Agent Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2024-02-28 Xiao-Hu Bing, Wen-Yu Ma, Ming-Hui Wu, Peng Gao, Xiao Zhou, Hai-Bin Luo, Long Wang, Wen-Ge Zheng
Poly(lactide acid) (PLA) foams have shown considerable promise as eco-friendly alternatives to nondegradable plastic foams, such as polystyrene (PS) foams. Nevertheless, PLA foam typically suffers from low heat-resistance and poor cellular structure stemming from its inherent slow crystallization rate and low melt strength. In this study, a high-performance PLA foam with well-defined cell morphology
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Simultaneously Improved Curing, Mechanical, Antioxidative Properties and Reduced ZnO Loading of Silica Filled NR Composites by Incorporation of Low-cost Crude Carbon Dots via Conventional Melt-milling Method Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2024-02-28 Chao-Ying Sun, Hai-Jun Ji, Li-Wei Li, Hui Yang, Xiao-Peng An, Yi-Ping Chen, Ming-Jian Han, Can Jiang, Li-Qun Zhang, Peng Yu, Run-Guo Wang
Rubbers or elastomers play an important role in hi-tech technology and civilian daily life because of their unique and strategical properties. Generally, the rubber additives are essential components for rubbers’ practical application. Nowadays, developing novel multifunctional additives has attracted increasing research attention. In this work, low-cost crude carbon dots (CCDs) were used as multifunctional
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Thermally Conductive, Healable Glass Fiber Cloth Reinforced Polymer Composite based on β-Hydroxyester Bonds Crosslinked Epoxy with Improved Heat Resistance Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2024-01-26 Fang Chen, Xiao-Yan Pang, Ze-Ping Zhang, Min-Zhi Rong, Ming-Qiu Zhang
To simultaneously endow thermal conductivity, high glass transition temperature (Tg) and healing capability to glass fiber/epoxy (GFREP) composite, dynamic crosslinked epoxy resin bearing reversible β-hydroxyl ester bonds was reinforced with boron nitride nanosheets modified glass fiber cloth (GFC@BNNSs). The in-plane heat conduction paths were constructed by electrostatic self-assembly of polyacrylic
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Study on Catalytic Behavior of Iron-based Catalyst with IITP as Electron Donor in the Polymerization of Butadiene Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2024-01-26
Abstract In this study, a novel iron-based catalyst system, Fe(acac)3/(isocyanoimino) triptenylphosphorane (IITP)/AlR3, was employed for the synthesis of syndiotactic 1,2-polybutadiene in hexane. This catalyst system exhibits remarkably high catalytic activity, achieving a polymerization activity of 762 kgpolymer·molcatalyst−1·h−1 at 50 °C with a [BD]/[Fe] molar ratio of 20000. Furthermore, living
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Automated Identification of Ordered Phases for Simulation Studies of Block Copolymers Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2024-01-26 Yu-Chen Zhang, Wei-Ling Huang, Yi-Xin Liu
In unit cell simulations, identification of ordered phases in block copolymers (BCPs) is a tedious and time-consuming task, impeding the advancement of more streamlined and potentially automated research workflows. In this study, we propose a scattering-based automated identification strategy (SAIS) for characterization and identification of ordered phases of BCPs based on their computed scattering
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Dielectric Constant Calculation of Poly(vinylidene fluoride) Based on Finite Field and Density Functional Theory Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2024-01-26 Yong-Zhi Lin, Lu-Kun Feng, Ya-Dong Li, Chao-Fan Chang, Cai-Zhen Zhu, Ming-Liang Wang, Jian Xu
In this study, we proposed a novel method that integrates density functional theory (DFT) with the finite field method to accurately estimate the polarizability and dielectric constant of polymers. Our approach effectively accounts for the influence of electronic and geometric conformation changed on the dielectric constant. We validated our method using polyethylene (PE) and polytetrafluoroethylene
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Self-assembly induced by complexation of diblock copolyelectrolytes and oppositely charged homopolymers Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2024-01-26 Ling Zhao, Zhi-Yuan Yin, Jia-Di Jiang, Er-Qiang Chen, Shuang Yang
We investigate the solution self-assembly of a mixture of positively charged homopolymers and AB diblock copolymers, in which the A blocks are negatively charged, and the B blocks are neutral. The electrostatic complexation between oppositely charged polymers drives the formation of many ordered phases. The microstructures and phase diagrams are calculated using self-consistent field theory (SCFT)
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Design of Biologically Active Macromolecular Ligands and Their Luminescent Complexes with Terbium Ions Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2024-01-25 Tatiana N. Nekrasova, Andrei I. Fischer, Natalia A. Nesterova, Anatoliy V. Dobrodumov, Anzhelika V. Garshinina, Olga D. Shuvaeva, Natalya V. Zakharova, Evgenii F. Panarin
Water-soluble copolymers of p-methacrylamidobenzoic acid (MABA) with neutral comonomers (N-vinylpyrrolidone (VP), N-methyl-N-vinylacetamide (MVAA), N-methacryloyl glucosamine (MAG)) and anionic comononer sodium styrene sulfonate (NaSS) were synthesized by radical copolymerization. The interactions between the prepared copolymers and Tb3+ ions in aqueous solutions were studied; the significant influence
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Preparation of Self-limiting Heating Cables with Excellent Processability, Mechanical Properties and PTC Effect via Thermal and Electrical Treatments Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2024-01-10 Tian-Hao Yang, Tong Wu, Qiang Fu
Polymer/conductive filler composites have been widely used for the preparation of self-limiting heating cables with the positive temperature coefficient (PTC) effect. The control of conductive filler distribution and network in polymer matrix is the most critical for performance of PTC materials. In order to compensate for the destruction of the filler network structure caused by strong shearing during
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High Speed Sintering: Assessing the Influence of Energy Input on Microstructure and Mechanical Properties of Polyether Block Amide (PEBA) Parts Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2024-01-11 Jiang-Tao Sun, Zhi-Yong Fan, Yi-Wei Mao, Wei Li, Wei Zhu, Dao-Sheng Cai, Qing-Song Wei
High speed sintering, a new powder-bed fusion additive manufacturing technology, utilizes infrared lights (IR) to intensely heat and melt polymer powders. The presence of defects such as porosity, which is associated with particle coalescence, is highly dependdent on the level of energy input. This study investigate the influcence of energy input on porosity and its subsequent effects on the mechanical
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Fabrication of Molecularly Imprinted Electrospun Nanofibers with Mono-amidoxime Functional Ligand for Efficient Decontamination of Toxic Organophosphates Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2024-01-11 Lan Wang, Peng Jiang, Ya-Lin Niu, Jun-Peng Cao, Tian-Ying Guo
There is an urgent imperative to discover practical and efficacious artificial catalysts for the expeditious decontamination of toxic organophosphates. Herein, we propose a novel molecularly imprinted approach utilizing electrospun fiber scaffolds. Specifically, an amidoxime-based functional polymer (PMAOX) has been synthesized, which contains amidoxime groups that can act as nucleophiles and ligands
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Impact of Carbon Chain Structures in the Backbone on the Flexibility of Modified Polyarylene Sulfide Resins: Molecular Dynamics Simulations and Mesoscopic Analysis Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2024-01-05
Abstract In the domain of high-performance engineering polymers, the enhancement of mechanical flexibility in poly(phenylene sulfide) (PPS) resins has long posed a significant challenge. A novel molecular structure, designated as PP-He-IS, wherein imide rings and an aliphatic hexylene chain are covalently incorporated into the PPS backbone to enhance its flexibility, is introduced in this study. Molecular
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High-Performance α-Diimine Nickel Complexes for Facile Access of PE Elastomers with Exceptional Material Properties Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-12-26 Li-Dong Qin, Xin-Yu Wang, Qaiser Mahmood, Zhi-Xin Yu, Yi-Zhou Wang, Song Zou, Tong-Ling Liang, Wen-Hua Sun
For practicable elastomeric polyethylene, achieving high catalyst thermal stability and activity, along with precise control of polymer properties such as branching density, molecular weights, and distribution, is crucial but challenging. In this study, two sets of symmetrical α-diimine nickel complexes, each comprising four nickel bromide or chloride complexes, were synthesized and investigated their
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Copper-coated Porous Polyimide as Ultralight and Safe Current Collectors for Advanced LIBs Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-12-29 Cun-Sheng Liu, Jun-Qi Hu, Ting-Ting Mao, Song-Yi Liao, Ru-Ming Feng, Yi-Dong Liu, Yong-Gang Min
Metallic copper is widely used as current collector (CC) for graphite anode of lithium-ion batteries (LIBs) due to its high electrical conductivity and electrochemical stability. However, the large volume density of commercial copper foil (∼8.9 g·cm−3) limits the increase of energy density of battery. Here, copper-coated porous polyimide (Cu@PPI) was prepared by vacuum evaporation as collector for
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Topological Confinement in Reversibly Interlocked Polymer Networks Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-12-13 Wan-Ting Dai, Zhen-Hua Xie, Yu-Bin Ke, Yang You, Min-Zhi Rong, Ming-Qiu Zhang
Recently, we reported a series of reversibly interlocked polymer networks (RILNs), whose mechanical robustness and functionalities improvement was believed to be derived from topological interlocking of two sub-networks, although the direct evidence for the deduction is still lacking. Herein, a specially-designed RILNs system, in which the inter-component hydrogen bonds can be shielded as needed, was
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Revealing the Structure-Property Difference of Natural Rubber Prepared by Different Methods: Protein and Gel Content are Key Factors Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-12-13
Abstract Natural rubber (NR) is widely used in various fields including aerospace, military industry and transportation due to its superior elasticity and comprehensive mechanical properties. Nonetheless, the commercial NR prepared by different methods usually exhibits different mechanical properties, primarily due to variations in processing conditions during the conversion from latex to bulk rubber
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Significantly Enhanced Energy Storage Performances of PEI-based Composites Utilizing Surface Functionalized ZrO2 Nanoparticles for High-Temperature Application Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-12-07 Qing-Qing Liu, Qiu-Hao Lin, Xiao-Dong Qi, Nan Zhang, Ting Huang, Jing-Hui Yang, Yong Wang
Polymer dielectrics with a high energy density and an available energy storage capacity have been playing an important role in advanced electronics and power systems. Nevertheless, the use of polymer dielectrics in harsh environments is limited by their low energy density at high temperatures. Herein, zirconium dioxide (ZrO2) nanoparticles were decorated with amino group utilizing 4,4-methylenebis
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Tough Semi-interpenetrating Polyvinylpyrrolidone/Polyacrylamide Hydrogels Enabled by Bioinspired Hydrogen-bonding Induced Phase Separation Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-12-07 Qiong-Jun Xu, Zhao-Yang Yuan, Chang-Cheng Wang, Hao Liang, Yu Shi, Hai-Tao Wu, Hu Xu, Jing Zheng, Jin-Rong Wu
Semi-interpenetrating (semi-IPN) hydrogels formed by the continuous interpenetration of cross-linked polymer network and linear non-crosslinked polymer with multifunctionality are widely used in biomedical and other fields. However, the negative impact of linear polymer on the homogeneity of the cross-linked network often leads to a decrease in the mechanical properties of semi-IPN hydrogels and severely
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Peculiarities of Ethylene Polymerization Reactions with Bis(imino)pyridyl Complexes of CoCl2 and FeCl2 Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-12-07 Laura A. Rishina, Yury V. Kissin, Svetlana S. Lalayan, Artem A. Antonov, Vadim G. Krasheninnikov, Alexander A. Gulin
The article describes ethylene polymerization reactions with transition metal catalysts based on complexes of CoCl2 and FeCl2 with an N,N,N-tridentate ligand 2,6-bis[1-(2,6-dimethylphenylimino)ethyl]pyridine. The complexes are converted into polymerization catalysts by reacting them either with polymethylalumoxane (MAO) or with a combination of Al(C2H5)2Cl and Mg(C4H9)2 at an [Al]:[Mg] ratio of ~3
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Research Progress in the Fabrication of Covalent Organic Framework Membranes for Chemical Separations Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-11-28 Cui-Ting Ding, Jin-Qiu Yuan, Meng-Ying Xie, Qing-Yuan Liu, Zeng-Guang Yao, Shi-Yu Zhang, Run-Nan Zhang, Hong Wu, Zhong-Yi Jiang
Membrane technology has become one of the most promising separation technologies for its energy saving, high separation efficiency, environmental friendliness, and economic feasibility. Covalent organic frameworks (COFs) with intrinsically high porosity, controllable pore size, uniform pore size distribution and long-range ordered channel structure, have emerged as next-generation materials to fabricate
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One-pot and One-step Cu(0)-mediated Reversible-Deactivation Radical Polymerization of N-Isopropylacrylamide (NIPAM) in Water Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-11-21 Zi-Shan Li, Jing Lyu, Bei Qiu, Ying-Hao Li, Ruth Foley, Ri-Jian Song, Melissa Johnson, Qiang Geng, Wen-Xin Wang
Copper(0)-mediated reversible-deactivation radical polymerization (Cu(0)-mediated RDRP) of the water-soluble monomer N-isopropylacrylamide (NIPAM) has been challenging with the problems of high dispersity, poor control over the molecular weights (MWs) or complex or multi reaction steps, etc. In this work, we report the well-controlled polymerization of NIPAM in water via a facile one-pot and one-step
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Molecular Dynamics Simulation Studies on the Micromorphology and Proton Transport of Nafion/Ti3C2Tx Composite Membrane Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-11-21 Zhi-Yue Han, Su-Peng Pei, Chun-Yang Yu, Yong-Feng Zhou
The perfluorosulfonic acid (PFSA) membrane doped with two-dimensional conductive filler Ti3C2Tx is a fuel cell proton exchange membrane with high application potential. Experimental studies showed that the proton conductivity of Nafion/Ti3C2Tx composite membrane is improved significantly compared with that in pure Nafion. However, the microscopic mechanism of doping on the enhancement of membrane performance
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Preparation of Chemically Recyclable Poly(ether-alt-ester) by the Ring Opening Polymerization of Cyclic Monomers Synthesized by Coupling Glycolide and Epoxides Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-11-15 Feng Ren, Zhuang-Zhuang Liang, Ming-Xin Niu, Chen-Yang Hu, Xuan Pang
Polyester and polyether are two key oxygenated polymers, and completely alternative sequence of poly(ester-alt-ether) could efficiently combine the advantages (including flexibility, degradability, etc.) of both segments. Currently, despite their copolymers could be synthesized from one-pot mixture of cyclic esters and epoxides, perfectly alternative microstructure is very challenging to realize and
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Production of Functional Materials Derived from Regenerated Silk Fibroin by Utilizing 3D Printing and Biomimetic Enzyme-induced Mineralization Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-11-15 Ni Chen, Fei-Yu Luo, Gong-Wen Yang, Jin-Rong Yao, Xin Chen, Zheng-Zhong Shao
Critical-sized bone defects, commonly encountered in clinical orthopedic surgery, present a significant challenge. One of the promising solutions is to prepare synthetic bone substitute materials with precise structural control, mechanical compatibility, and enhanced osteogenic induction performance, nevertheless the successful preparation of such materials remains difficult. In this study, a two-step
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Thermo- and pH-sensitive Polymer with Pendant Spacer-linked Imidazole Cycles Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-11-17 Natalya V. Zakharova, Stanislav N. Zelinskiy, Mariya S. Strelova, Elena N. Danilovtseva, Vadim V. Annenkov
By the reaction of poly(acryloyl chloride) with N-(3-aminopropyl)imidazole, poly(N-(3-(1H-imidazol-1-yl)propyl)acrylamide) was synthesized. The new polymer contains an imidazole ring removed from the main chain by a spacer of five bonds. The structure and purity, molecular weight, hydrodynamic and thermosensitive properties of the obtained sample were studied by 1H- and 13C-NMR, FTIR spectroscopy,
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Critical Role of Ethylene-Propylene Block Copolymer in Impact Polypropylene Copolymer Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-11-10 Yu-Hui Tang, Na Zhang, Wei Bao, Wei Jiang, Yuan Lin, Zhao-Hui Su
Ethylene-propylene block copolymer (EbP) is a vital component in impact polypropylene copolymer (IPC), yet its distribution in the multiphase composite material and how it influences the phase structure and the mechanical properties are not well understood. In this work, four IPCs were investigated by atomic force microscopy-infrared (AFM-IR) to assess the phase compositions in situ, based on which
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Recent Progress in Fabrication and Structural Design of Thermal Conductive Polymer Composites Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-11-10 Yuan-Kai Du, Zheng-Xue Shi, Shan Dong, Hui Jin, Xue Ke, Pei Zhao, Bing-Bing Jiang, Feng You
In recent years, the demand direction for electronic equipment has expanded into embedded and miniaturized devices. The heat radiation problem has become one of the most significant factors for hindering the development of electronic devices. Since heat radiation material is one of the important components in electronic devices, the demand for enhancing thermal conductivity is also increasingly urgent
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Polymerization of 1,3-Butadiene with Catalysts Based on Cobalt Dichloride Complexes with Aminophosphines: Switching the Regioselectivity by Varying the MAO/Co Molar Ratio Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-11-10 Giovanni Ricci, Anna Sommazzi, Francesco Masi, Alessandra Forni
Several novel cobalt dichloride complexes with amino-phosphine bidentate ligands were synthesized and characterized. For some of them single crystals were obtained and their molecular structure was determined by X-ray diffraction method. All the complexes were then used in combination with MAO for the polymerization of 1,3-butadiene, obtaining polymers with different structures (i.e., predominantly
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Numerical Analysis of PRISM-PY Calculations for Hard- and Soft-Core Generic Polymer Models Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-11-11 Qiang Wang
Generic polymer models capturing the chain connectivity and excluded-volume interactions between polymer segments can be classified, according to whether or not the 3D integral of the latter diverges, into hard- and soft-core models. Taking homogeneous systems of compressible homopolymer melts (or equivalently homopolymer solutions in an implicit, good solvent) in the continuum as an example, we recently
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Random Terpolymer Based on Simple Siloxane-functionalized Thiophene Unit Enabling High-performance Non-fullerene Organic Solar Cells Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-11-02 Fuliang Cheng, Shiting Lai, Yihan Zhang, Ling Xue, Xinxin Xia, Peipei Zhu, Xinhui Lu, Xunfan Liao, Yiwang Chen
Incorporation of siloxane-functionalized units into polymers backbone has proven to be an efficient strategy to improve photovoltaic performance. In this work, a low-cost siloxane-containing unit was developed to construct a series of terpolymers, and the effects of siloxane on the polymer performance were systematically studied. Different contents of thiophene containing siloxane-functionalized side
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Ion-conducting Membranes Based on Bacterial Cellulose Nanofibers Modified by Poly(sodium acrylate-co-2-acrylamido-2-methylpropanesulfonic acid) Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-11-03 Elizaveta V. Batishcheva, Nikolay N. Smirnov, Natalya V. Bobrova, Maria P. Sokolova, Michael A. Smirnov
Green method for preparation of ion-conducting membranes (ICM) based on bacterial cellulose nanofibers (CNF) modified by a copolymer of sodium acrylate and 2-acrylamido-2-methylpropanesulfonic acid was elaborated. FTIR and NMR data confirmed grafting of poly-acrylate onto cellulose surface. Formation of porous structure of the ICM was controlled by SEM and AFM. The maximal ionic conductivity of the
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Particle Distribution Informed by Chain Rigidity in Diblock Copolymer Melts: The Effect of Entropy Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-11-03 Yuguo Chen, Shuanhu Qi, Ying Jiang
We study the effect of chain rigidity on tailoring the nanoparticle locations for neutral and selective particles embedded in the lamellar morphology formed by semiflexible diblock copolymer chains using self-consistent field calculations. The nanoparticles are modeled through a cavity function, and the semiflexible chains are represented by the continuous Kratsky-Porod chain model. In general situation
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Rheological Behaviors of Polymers with Nanoparticles Tethered at Each End Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-10-09 Song-Qi Zhang, Wen-Qing Wang, Jia-Ping Lin, Li-Quan Wang
The polymer with nanoparticles tethered at each end is a unique model for unraveling the effect of chain ends on the polymer dynamics. We investigated the rheological behavior of this kind of polymer by using nonequilibrium molecular dynamics simulation. The effect of polymer lengths and nanoparticle radii on the complex moduli and viscosity was examined. The dependence of complex moduli on the frequency
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Spherical Confinement Generates Entropic Force to Accelerate Polymer Chain Detachment Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-09-27 Yu-Shan Zheng, Jian-Ping Zhou, Yan Xu, Kai Li
To understand the dynamic process of polymer detachment, it is necessary to determine the mean detachment time of a single breakable link, which is modeled as a spring. Normally, this time can be viewed as the escape of a Brownian particle from the potential well of the spring. However, as the free dangling length of the polymer chain increases, the conformational entropy of the chain is affected by
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Facile Synthesis of Polyisothioureas via Alternating Copolymerization of Aziridines and Isothiocayanates Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-09-27 Hao-Tian Zhang, Ming-Xin Niu, Qi Zhang, Chen-Yang Hu, Xuan Pang
Isothiourea is an important class of sulfur-containing molecules showing unique catalytic and biological activities. As such, polyisothiourea is envisioned to be an interesting type of polymer that potentially exhibits a number of interesting properties. However, there is no access to synthesizing well-defined polyisothiourea, and currently isothiourea-containing polymers are mainly prepared by immobilizing
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High-Performance Recyclable Furan-based Epoxy Resin and Its Carbon Fiber Composites with Dense Hydrogen Bonding Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-09-20 Chang-Bo Zhao, Lu-Kun Feng, Hui Xie, Ming-Liang Wang, Bing Guo, Zhi-Yong Xue, Cai-Zhen Zhu, Jian Xu
The emerging biomass-based epoxy vitrimers hold great potential to fulfill the requirements for sustainable development of society. Since the existence of dynamic chemical bonds in vitrimers often reduces both the thermal and mechanical properties of epoxy resins, it is challenging to produce recyclable epoxy vitrimers with both excellent mechanical properties and good thermal stability. Herein, a
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Investigating the Absorption and Desorption Behavior of Methylene Chloride in the Poly(aryl ether ketone) Film with Different Crystallinities Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-09-19 Hong-Ru Yang, Jin-Dong Zhang, Dong-Ting Gao, Gang Liu, Chun-Hai Chen, Jia-Nan Yao
Poly(aryl ether ketone) (PAEK) films with different crystallinities were obtained by controlling the cooling rate, which were subjected to the absorption and desorption of methylene chloride (CH2Cl2). We employed attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy analyses to investigate the diffusion behavior of CH2Cl2 in PAEK films with different crystallinities. According
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Regio- and Stereoselective Polymerization of Bio-based Ocimene by Rare-Earth Metal Catalysts Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-09-20 Qi-Yuan Wang, Li-Peng Sang, Zhen Zhang, Yang Jiang, Hui Tian, Xia Zhao, Xiang Guo, Shi-Hui Li
Coordination polymerization of renewable β-ocimene has been investigated using asymmetric diiminophosphinate lutetium complex 1, β-diketiminate yttrium complex 2, bis(phosphino)carbazolide yttrium complex 3, half-sandwich benzyl fluorenyl scandium complex 4 and pyridyl-methylene-fluorenyl rare-metal complexes 5a–5c. Complexes 1, 4 and 5a–5c show trans-1,2-regioselectivities and high activities, of
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Thiazoloisoindigo-based Polymer Semiconductors: Synthesis, Structure-Property Relationship, Charge Carrier Polarity, and Field-Effect Transistor Performance Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-09-20 Bo-Wen Li, Miao Xiong, Mei-Hua Liu, Zhi-Gao Li, Long Sang, Zi-Han Xiong, Biao Xiao, Jian Pei, Xiao-Bo Wan
Developing new polymeric semiconductors with excellent device performance is essential for organic electronics. Herein, we synthesized two new thiazoloisoindigo (TzII)-based polymers, namely, P(TzII-dTh-dTh) and P(TzII-dTh-dTz), by copolymerizing thiophene-flanked TzII with bithiophene and bithiazole, respectively. Owing to the more electron-deficient nature of bithiazole than bithiophene, P(TzII-dTh-dTz)
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Impact of Annealing on the Melt Recrystallization of a-PDLA/α-PLLA Double-layered Films Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-09-15 Yun-Peng Li, Hao-Ran Shen, Shao-Juan Wang, Hao Zhang, Jian Hu, Rui Xin, Xiao-Li Sun, Shou-Ke Yan
Poly(lactic acid) (PLA) as a bio-based polymer with biodegradability and biocompatibility has attracted much attention. To manipulate its properties for different applications, regulation of crystal structure and crystalline morphology becomes an attractive research topic. In this work, the structure evolution of layered samples containing an amorphous poly(D-lactide) (PDLA) layer and a crystalline
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Simultaneous Bulk- and Surface-initiated Living Polymerization Studied with a Heterogeneous Stochastic Reaction Model Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-09-15 Jia-Shu Ma, Zhi-Ning Huang, Jia-Hao Li, Bang-Ping Jiang, Yan-Da Liao, Shi-Chen Ji, Xing-Can Shen
To better characterize the properties of surface-initiated polymers, simultaneous bulk- and surface-initiated polymerizations are usually carried out by assuming that the properties of the surface-initiated polymers resemble those of the bulk-initiated polymers. Through a Monte Carlo simulation using a heterogeneous stochastic reaction model, it was discovered that the bulk-initiated polymers exhibit
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Poly(3-hexylthio) thiophene Field-effect Transistor Device Performance: Impact of the Content of Hexylthio Side Chain on Backbone Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-09-15 Hao-Yu Liu, Lian-He Han, Ling-Wei Kong, Li-Ping Zhu, Xiao-Lan Qiao, Mei-Fang Zhu
Regioregular poly(3-hexylthio)thiopene (P3HTT) has emerged tremendous potential in organic electronic applications due to the strong noncovalent interactions from the sulfur atom linked to thiophene. However, P3HTT generally exhibits low charge mobility mostly due to poor solution processability attributed to dense arrangement of hexylthio side chain in polymer, which led to strong noncovalent interactions
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Phosphine/Benzocyclone-based Neutral Nickel Catalysts for Ethylene Polymerization and Copolymerization with Polar Monomers Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-09-15 Fei Wang, Li Pan, Vladislav A. Tuskaev, Svetlana Ch. Gagieva, Yue-Sheng Li
The efficient copolymerization of olefin with polar monomers using nickel-based catalysts presents a longstanding challenge. In this contribution, three phosphine-benzocyclone ligands and corresponding neutral nickel catalysts (Ni1: Ar = Ph; Ni2: Ar = 2-(C6H5)C6H4; Ni3: Ar = 2-[2′,6′-(MeO)2-C6H3]C6H4) were prepared and applied for the ethylene polymerization and copolymerization with polar monomers
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Access to High-Molecular-Weight Polyethylenes through High Temperature Ethylene Polymerization Catalysed by Ethylene-Bridged ansa-(3-R-Cyclopentadienyl)(Fluorenyl) Zirconocene Complexes Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-09-15 Bo Li, Haiyan Ma, Jiling Huang
A series of C1-symmetric ethylene-bridged ansa-(3-R-cyclopentadienyl)(fluorenyl) metallocene complexes (Zr: 1–5; Hf: 6) have been synthesized, characterized and investigated as catalyst precursors for the high temperature ethylene polymerization. Using methylaluminoxane (MAO) as the cocatalyst, zirconium complexes 1–5 bearing a bulky substituent on the 3-position of the cyclopendienyl ring showed high
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Chemoselective and Living/Controlled Polymerization of Alkenyl Methacrylates by the Phosphonium Ylide/Organoaluminum Lewis Pairs Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-09-15 Zhi-Kang Chen, Wu-Chao Zhao, Yi-Ling Zhao, Cong-Lei Liu, Liu-Yin Jiang, Yue-Tao Zhang, Hong-Ping Zhu
Chemoselective, living/controlled polymerizations of allyl methacrylate (AMA) and vinyl methacrylate (VMA) with/without methyl methacrylate (MMA) by using the phosphonium ylide/organoaluminum based Lewis pairs (LPs) have been realized. The P-ylide-2/AlMe(BHT)2 (P-ylide-2 = Ph3P=CHMe and BHT = 2,6-iBu2-4-MeC6H2O) was demonstrated to be superior by which homopolymers PAMAs (Mn=27.6–111.5 kg/mol and Đ=1
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Manipulating the Phase Transition Behavior of Dual Temperature-Responsive Block Copolymers by Adjusting Composition and Sequence Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-09-15 Zhi Zou, Xiang Xu, Hai-Tao Zhao, Jian-Nan Cheng, Wei-Wei He, Li-Fen Zhang, Zhen-Ping Cheng
Temperature-responsive polymers have garnered significant attention due to their ability to respond to external stimuli. In this work, dual temperature-responsive block copolymers are synthesized via reversible addition-fragmentation chain transfer polymerization (RAFT) polymerization utilizing zwitterionic monomer methacryloyl ethyl sulfobetaine (SBMA) and N-isopropyl acrylamide (NIPAAm) as monomers
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High Temperature Iron Ethylene Polymerization Catalysts Bearing N, N, N′-2-(1-(2,4-Dibenzhydryl-6-fluorophenylimino)ethyl)-6-(1-(arylphenylimino)ethyl)pyridines Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-09-12 Chantsalnyam Bariashir, Qiu-Yue Zhang, Bayasgalan Ulambayar, Gregory A. Solan, Tong-Ling Liang, Wen-Hua Sun
The N, N, N′-ferrous chloride complexes, [2-{CMeN(2,4-(CHPh)2-6-FC6H2)}-6-(CMeNAr)C5H3N]FeCl2 (Ar = 2,6-Me2C6H3Fe1, 2,6-Et2C6H3Fe2, 2,6-iPr2C6H3Fe3, 2,4,6-Me3C6H2Fe4 and 2,6-Et2-4-MeC6H2Fe5), each possessing one N-2,4-dibenzhydryl-6-fluorophenyl group, were readily synthesized from their respective unsymmetrical bis(imino)pyridines, L1–L5. Structural identification of Fe2 highlighted the variation
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Porous Shish-Kebab Structure Prepared from Oriented UHMWPE Films by Processing in Supercritical CO2 Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-08-31 Sergey A. Lermontov, Aleksey V. Maksimkin, Nataliya A. Sipyagina, Tarek Dayyoub, Alena N. Malkova, Evgeniy A. Kolesnikov, Elena A. Straumal, Inna O. Gozhikova, Saidkhodzha G. Nematulloev, Dmitry V. Telyshev
For the first time, a highly crystalline porous shish-kebab structure with a high degree of crystallinity was obtained by using a combination of two methods for the formation of porous polymeric materials. A treatment procedure using supercritical carbon dioxide (scCO2) was carried out for oriented ultrahigh molecular weight polyethylene (UHMWPE) films, which provided special conditions for the crystallization
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Olefin Polymerization Behavior of Titanium(IV) Complexes with Fluorinated and Non-fluorinated Aliphatic Phenoxyimine Ligands Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-09-01 Vladislav A. Tuskaev, Kasim F. Magomedov, Svetlana Ch. Gagieva, Dmitry A. Kurmaev, Yulia V. Nelyubina, Evgenii K. Golubev, Maria D. Evseeva, Viktor G. Vasil’ev, Galina G. Nikiforova, Mikhail I. Buzin, Vyacheslav S. Bogdanov, Boris M. Bulychev
A series of Ti(IV) dichloride and dialkoxide complexes with phenoxyimine ligands containing fluorinated and nonfluorinated aliphatic imine fragments have been synthesized. The molecular structures of complexes 1 and 4 were established by single-crystal X-ray diffraction studies. The complexes adopt a distorted octahedral coordination structure around the titanium atom and two oxygen atoms are situated
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Unconventional 2D Periodic Nanopatterns Based on Block Molecules Chinese. J. Polym. Sci. (IF 4.3) Pub Date : 2023-08-24 Bo Hou, Wen-Bin Zhang, Yu Shao
This review summarizes the self-assembly of block molecules forming unconventional two-dimensional (2D) periodic nanopatterns. Especially, we emphasize the structural evolution from simple columnar phases to complex 2D tiling morphologies in soft materials including block copolymers, liquid crystals, giant molecules, etc. Then, the state-of-the-art nanofabrication technologies for making sophisticated