Abstract In this work, gel-like polymer electrolytes were prepared by incorporating poly(ε-caprolactone) (PCL) into dimethylformamide (DMF)-potassium iodide (KI) liquid electrolytes. The optimized gel polymer electrolyte has the composition of 40 wt.% of PCL, 45 wt.% of DMF and 15 wt.% of KI with a conductivity of 2.72 × 10−3 S cm−1 at room temperature. Increase in conductivity with temperature is

Abstract Mixed matrix membranes (MMMs) were fabricated by incorporating carboxylated multi-walled carbon nanotubes (MWCNTs) into a poly (arylene fluorene ether ketone) that contained amino groups (Am-PAFEK) matrix to improve CO2 separation performance. The combination of MWCNTs and Am-PAFEK exerted a favorable synergistic effect on the permeability and selectivity of membranes. The extraordinary smooth

Abstract Polystyrene (PS) with great flame retardancy has been achieved by addition of polyhedral oligomeric silsesquioxane (POSS). However, the POSS/PS composite showed easy-ignition behavior leading to fire hazard exposed. Aiming to prolong time to ignition (TTI) and improve flame retardancy simultaneously, using non-flammable modifier to decorate POSS is a facile method. Here, two kinds of POSS

Abstract The past decade has witnessed a remarkable growth in the polymerization reactions that are catalyzed by postmetallocene complexes. In this report, three early transition metal catalysts based on TiCl4 and aliphatic linear saturated dicarboxylic acids (Oxalic, Malonic and succinic acid) have been synthesized and characterized and their catalytic activity in emulsion polymerization have been

Abstract Anti-fungal hydrogel wound dressings were prepared using the ion cross-linked poly (AA-co-AAm)/PVA/Cloisite 15A nanocomposite hydrogels which were loaded by allicin. The allicin is the main anti-fungal and anti-biotic material of the garlic and it was extracted from fresh garlic pulps following a simple method. The extracted allicin was then loaded on synthesized hydrogel films by immersing

Abstract A well-designed drug delivery platform improves the pharmacological properties of therapeutics. Here, we report a biodegradable interpenetrating polymer network (IPN) microbeads delivery technology developed by crosslinking a polymer blend of poly(vinyl alcohol), xanthan gum, and sodium alginate to enhance the solubility of poorly soluble drugs. The microbeads effectively improve the solubility

Abstract Stickies deriving from the recycled paper had multiple deleterious effects on the paper chemicals, machine run-nability and paper equality. The aim of this study was to synthesize citosan composite microspheres and remove stickies in the recycled paper by microspheres. Citosan-montmorillonite and chitosan-ferroferric oxide composite microspheres were prepared by emulsion cross-linking method

Abstract It is well known that poly(vinylidene fluoride) (PVDF) crystallizes in semi polymorphic crystalline forms of α, β, γ,-phases. The piezo- as well as pyroelectric properties of PVDF is strongly dependent on its β-crystalline phase. These features make it suitable for sensors and battery applications. Thin films of PVDF are widely used in recent thermal camera sensors. In this study, optimum

Abstract Fluoroelastomer and silicone rubber lie in the two different poles of elastomer family in terms of polarity. Hence, combining them in a single material and making it as at least technologically compatible substance is a great challenge. In this article, the compatibilization effect of fluorosilicone rubber (block copolymer) (trifluoropropylpolydimethylsiloxane) with various loading of modified

Abstract Poly (ethyl methacrylate) (PEMA) - cellulose acetate propionate (CAP) blend film was prepared using the cast technique. A Q-switched Nd: YAG laser beam with a wavelength of 266 nm, a pulse duration of 10-ns, a repetition rate10 Hz and 0.018 J/cm2 fluence was used to irradiate the prepared film. The optical absorption of pristine and irradiated sample was studied within 200–500 nm wavelength

Abstract In this study, L-cysteine functionalized POSS nanoparticles were synthesized. The synthesized nanoparticles and methyl-methacrylate were applied to fabrication of polyether-imide-thin film nanocomposite nanofiltration membrane. The ratio of (MMA: NPs) changed to obtain efficient separation performances and good antifouling properties. Fourier transform infrared spectroscopy (FTIR), field emission

Abstract This work is the continuation of our previous modeling results, where small polymeric unit adsorption properties on gold surface had been studied. In this report, the conformational features of long poly (vinylimidazole) (PVI) molecule on Au{111} facet has been examined by molecular dynamics method. We show that the long polymer binds to gold surface and more than 50% monomers are adsorbed

Abstract In this study our previously prepared and fully characterized starch nanoparticles (SNPs) were graft copolymerize with acrylonitrile (AN) by microwave irradiation method without toxic chemical initiator. This was done to see the impact of microwave irradiation method as green and efficient tool with respect to reduction in organic solvents, toxic chemical initiator and exposer time on maximizing

Abstract Nanospheres with different particles size and nanorodes of copolymer of anthranilic acid with o-aminophenol poly(AA-co-o-AP) were synthesized by redox polymerization initiated by FeSO4.7H2O as redox initiator and ammonium peroxydisulfate (APS) as oxidant in different concentrations of aqueous solutions of hydrochloric acid. The influence of synthetic parameters such as acid concentration and

Abstract Biofouling is one of the major worldwide problems associated with the vessel due to its accumulation with the surface of the ship hull. The biofouling is the main origin of the coating’s deterioration that ultimately leads to bio-corrosion, roughness and drag, resulting in an enormous increase in the fuel consumption. Although Tributyltin (TBT) has been used as a pioneer class of antifoulant

Abstract Ternary-nanocomposites of polyamide 12 (PA-12) and multi-walled carbon nanotubes-embedded-polypropylene (MWCNT-embedded-PP) were fabricated by direct-melt-mixing-route and characterized for their dispersion-nanomorphology and phase-selective micromorphology. The crystallite sizes remained in the range of 8–9 nm and a broadening in loss-tangent peaks shifting towards higher temperatures with

Abstract In this work cross-linked hybrid organic-inorganic membranes consisting of polymeric matrix functionalized with sulfonic groups and uniformly distributed silica domains have been successfully synthesized through in situ polymerization strategy via photo-initiated copolymerization of acrylic monomers (acrylonitrile AN, acrylamide AAm, 3-sulfopropyl acrylate potassium salt SPAK) and simultaneous

Abstract In order to meet the application of the flexible wings of the submersible, nanocomposite hydrogels(NC gels) was prepared. Preparation of polyglycidyl methacrylate (PGMA) microspheres and correspondingly NC gels were reported. PGMA microspheres were prepared and modified by N-Methyl-D-glucamine, followed by free radical polymerization of acrylamide in the presence of microspheres to construct

Abstract Polycaprolactone (PCL) is considered as a most widely used biodegradable polymers in tissue engineering. But, PCL is also associated with certain limitations like, low stiffness, hydrophobic nature and limited cell affinity. These drawbacks are addressed in the present study by incorporating different wt% of silicon dioxide (SiO2) and hydroxyapatite (HAp) in the PCL matrix. 3D scaffolds were

Abstract Herein, this review the synthesis of different types of copolymer of β-cyclodextrin (β-CD) by different functional monomers and cross-linkers is discussed. β-CD shows good inclusion property, surface area, porous structure and unique host-guest properties. CDs, the macrocyclic compounds are renowned for their inclusion ability. Several chemical and polymerized derivatives of parent CDs are

Abstract This study includes the synthesis of amino acid graft copolymer from N- Acryloyl-L-phenylalanine amino acid and Guar gum polymer through free radical polymerization. Then the dual responsive (pH & temperature) hydrogels are synthesized by employing free radical cross linking polymerization using graft copolymer, N-isopropyl acrylamide and 2-(dimethylamine) ethylmethacrylate using N,N′-methylenebisacrylamide

Abstract oIn order to realize the application of continuous glass fibers (GFs) in polyvinyl chloride (PVC), the wet powder impregnation technology was introduced to the preparation of the PVC/GF composites to improve the mechanical properties of the PVC products. During the molding process, the PVC powder impregnated GFs tapes were prepared first and then hot pressed into the test samples. Besides

Abstract Due to in-situ gelation, an injectable hydrogel drug carrier has advantages over other delivery systems. Atomic simulations help to study the structure-performance relationship of drug delivery systems (DDS) considering the interaction between components, which is focused in this study. Chitosan hydrogel network is constructed using three different crosslinking agents, soaked with water, and

Abstract Recently, interest in developing green polymer coatings which provide self-healing and corrosion protection functions using bio-based renewable materials has significantly increased. In this study, microcapsules containing biopolymers from cashew gum and gum Arabic have been prepared by interfacial polymerization. The prepared microcapsules were individually and combinatorially embedded into

Abstract In order to obtain the tunable and charged surface of the membranes, polymerized ionic liquid(PIL) block copolymers poly (methyl methacrylate) (PMMA)-b-poly(1-[(2-methacryloyloxy)ethyl]-3-butylimidazoliumbromide) (PMEBIm-Br) with different poly(ionic liquid) brush lengths were synthesized by RAFT polymerization method and used in the fabrication of poly(vinylidene fluoride) blend membranes

Abstract Due to its good biodegradability and biocompatibility, polycaprolactone (PCL) has attracted widespread attention in the field of biomedical materials. Incorporation of Zinc oxide (ZnO) into PCL has been proved an effective way to improve its antibacterial properties. However, the interfacial compatibility of the organic-inorganic system needs to be improved due to the agglomeration of nanoparticles

Abstract In this study, the main purpose is to systematically evaluate isothermal and non-isothermal crystallization behavior of short glass fiber-reinforced polyphenylene sulfide polymer composites (PPS/GF) by a wide range of commonly applied models and also to preciously discuss the crystallization evolution and dynamic mechanical properties together with the consideration of thermal aging effects

Abstract Synthesis of poly(styrene-b-methyl methacrylate) block copolymers were obtained via reversible addition-fragmentation chain transfer (RAFT) polymerization of styrene using RAFT-macro agent. For this purpose, 4-bromomethyl benzoyl chloride was obtained using 4-methylbenzoyl chloride and N-bromosuccinimide. The mono functional bromomethyl benzoyl t-butyl peroxy ester (t-BuBP) was obtained by

Abstract In this work, we report for the first time the use of a nonconjugated semicrystalline polymer as a film-forming agent to control the crystallization and tune the charge transport of solution-processed, small-molecule organic semiconductors. When 6,13-bis (triisopropylsilylethynyl) pentacene (TIPS pentacene) was demonstrated as a representative material to blend with polyethylene oxide (PEO)

Abstract Using biogenically synthesized silver nanoparticles (AgNPs) by Enterobacter cloacae Ism 26 (KP988024); Polyvinyl Alcohol-Silver (PVA-Ag) and Chitosan-Silver (CS-Ag) nanocomposites were prepared by augmentation. Thermal stability, AgNPs distribution and concentration within nanocomposites were characterized using thermogravimetric analysis (TGA), scanning electron microscope/energy dispersive

Abstract The extraction of collagen from fish skins is being proposed as strategy for valorization of marine origin by-products, being a sustainable alternative to mammal collagen. The method commonly uses solutions of organic acids, but new methodologies are arising, aiming to improve process yields and/or the properties of the resulting products. In this work, skins removed from salt brine Atlantic

Abstract Nanocomposites with multifunctional properties are of great interest as they meet the needs of the developing industrial and engineering fields. The present study focus on the development of multifunctional elastomeric nanocomposites with exfoliated graphite (EG) as the reinforcing content and the speciality material fluoroelastomer as the polymer matrix. Morphological analysis of the nanocomposites

Abstract In this work, we chose different ratios of glycerol and pentaerythritol to plasticize PVA. The solid and liquid were compounded to plasticize PVA, because pentaerythritol had a large molecular weight and a high boiling point, which can sovle the gycerol’s migration problem and make it beneficial for long-term plasticization. The interaction of the hydroxyl group of a large molecular weight

Abstract Subcutaneous islet transplantation can be easily conducted with minimum invasiveness, and the implant can be monitored easily. However, a major disadvantage of this transplantation technique is its poor efficacy which could be attributed to poor oxygenation and inadequate vascularization at the subcutaneous tissue. In this study, we explored the use of thermosensitive methoxy-poly(ethylene

Abstract In order to improve the throughput and plasticizing capability of traditional single screw extruder (SSE), grooves at the inner surface of barrel were extended from the feeding zone to the melting zone of the extruder. However, the melting behavior and plasticizing quality of polymers in the grooved SSE can not be observed and measured intuitively because of the closed structure of the extruder

Abstract The objective of the present work is to synthesize three different types of cardanol based benzoxazines such as cardanol-{1,4-bis(4-aminophenoxy)ethane}benzoxazine (CBAE2Bz), cardanol-{1,4-bis(4-aminophenoxy)butane} benzoxazine (CBAE4Bz) and cardanol-{1,4-bis(4-aminophenoxy)octane}benzoxazine (CBAE8Bz) by varying aliphatic ether link chain length through solventless method. The benzoxazines

Abstract An immense technological challenge of polypropylene-based composites is in optimising the effect of multicomponent fractions on their mechanical properties. Hence the main aim of the present study is to carry out a systematic statistical approach to investigate the impact of multicomponent fractions on the mechanical properties of Polypropylene (PP)/Talc/ Polyolefin Elastomer (POE) and ma

Abstract In this research, an attempt has been made to prepare a membrane with high adsorption capacity and high separation efficiency for oil water. The composite membrane of UiO-66-NH2 and polyacrylonitrile (PAN) were fabricated by electrospinning, and hydrophobic modification was carried out to obtain the oil selectivity. UiO-66-NH2 loaded on fibers significantly enhanced the oil affinity and surface

Abstract We have developed a dual-sensitive composite hydrogel network from guar gum grafted polyacrylamidoglycolic acid (graft polymer) using sodium borohydride, which induces cross-linking and growth of silver nuclei by reduction reaction through a fast and easy route. The cross-linked graft polymer (GGAA) and its silver nanocomposite (GGAA@SNC) hydrogels have been successfully utilized to explore

Abstract For filler-polymer systems, the ultimate importance of interfacial interactions between fillers and polymers lies in improving morphological developments and properties of composites. In this work, sepiolite fiber (SEP)/polyoxymethylene (POM) is formulated through melt extrusion processing, with the aim of promoting the crystallization and overall performance of POM. Results show that hydrogen

Abstract On the basis of solvothermal reaction, a new porous Cu(II) metal-organic framework (MOF), {[(Cu(L)2(H2O)2](DMF)4)n (namely 1), can be formed via self-assembly of 3-(1H-pyrazol-4-yl)pyridine (namely HL) and Cu(II) ion in water and DMF mixed solvent. We characterized the MOF 1 via elemental analysis, powder X-ray diffraction (PXRD) and single crystal X-ray diffraction, thermogravimetric analysis

Abstract In this work, new polyurethane elastomers were prepared by chain-extension with varying molar ratios of curcumin or blends of the curcumin and different cross-linkers (glycerol 1,3-diglycerolate diacrylate, glycerin, castor oil, acrylate epoxidized soybean oil). All of the used cross-linkers derive from renewable resources. Structural studies performed by means of infrared spectroscopy confirmed

Abstract With increasing limitation of petrochemical resources, there is a growing demand for the replacement of nonrenewable fiber-reinforced polymer composites by renewable polymer composites. Therefore, the aim of this research work was to improve the mechanical properties of bast (plant) fibers reinforced polymer composites without reducing their renewable material content. To achieve this goal

Abstract Noise pollution is one of the most severe environmental concerns due to its damaging effects on human health. This study aimed to evaluate the relationship between the acoustic damping behavior and fractal dimension (Df) of flexible polyurethane foams (FPUFs) manufactured by different synthesized linear saturated aliphatic polyesters (LSAP) resins, methylene diphenyl diisocyanate (MDI), etc

Abstract A simple method is established to synthesize bio-based cross-linked polyitaconamides (cPITAs) through a Michael ene-amine addition and bulk polycondensation. A tetraester, i.e. tetramethyl piperazine-N,N′-bis(2-methylene butanedioate) (TMPB), was synthesized through a Michael addition of dimethyl itaconate and piperazine at 90 °C. Bulk polycondensation of TMPB with butanediamine or hexamethylenediamine

Abstract In this work, an experiment was conducted to investigate the cationic polymerization of isobutylene (IB) with AlCl3 as the initiator; the experiment was carried out with C4 mixed gas as the raw material. The initial content of IB in the mixed C4 gas was 22% and the proportion of isobutylene in the mixed C4 was changed later by continuously adding pure IB. A suitable amount of the co-initiator

Abstract A dicarboxylic acid Schiff base ligand was synthesized via condensation of 2-hydroxybenzaldehyde with 5-aminoisophthalic acid. The derived monomer was reacted with 4,4′-diaminodiphenyl ether and triphenyl phosphite (TPP) in tetrabutylammonium bromide (TBAB) molten ionic liquid as a green solvent to form an aromatic polyamide with a moderate yield (71%) and inherent viscosity (0.2 dL g−1).

Abstract Heterogeneous blends of millable polyurethane (MPU) and ethylene-co-vinyl acetate (EVA) elastomers have been prepared by conventional open mill mixing, and subsequently cured with DCP as curing agent. The prepared blends were characterized by TGA, DSC, XRD and DMA techniques. Mechanical and solvent transport features have been evaluated. Examination of EVA phase crystallization dynamics revealed

Abstract An electroactive series of polyamides was synthesized from 4,4′-diamino-4′′-phenoxy triphenylamine (1), 4,4′-diamino-4′′-benzyloxy triphenylamine (2) and terephthaloyl or isophthaloyl chloride. The FTIR (Fourier Transform Infrared) spectral characterization and solubility test of the subsequent polyamides (PA I-IV), UV-vis, photoluminescence spectral analysis (PL) and cyclic voltammetry were

Abstract The present work describes the electrochemical performance of gel polymer electrolytes containing two different sodium salts such as sodium trifluoromethanesulfonimide (NaTFSI) and sodium trifluoromethanesulfonate (NaOTF)). Poly (1-vinylpyrrolidone-co-vinyl acetate) P(VP-co-VAc) and the mixture of ethylene carbonate and propylene carbonate (EC: PC) have been employed as the host polymer and

Abstract Present research demonstrated the crosslinking of Cydonia oblonga seeds hydrogel using citric acid (CA) and evaluated its stimuli-responsive swelling properties at different biomimetic pH, swelling/deswelling behavior against different fluids and sustained release potential in orally administered tablet formulation. Cross-linked C. oblonga hydrogel (CL-COH) was synthesized using four concentrations

Abstract This paper follows up investigations in the field of solution properties of poly(vinyl alcohol). Here we present a combined investigation based on both theoretical and various experimental methods focused on peculiarities in hydrogen bond reorganization in aqueous poly(vinyl alcohol) solutions discussed as a function of temperature. It was demonstrated that the specific polymeric effect takes

Abstract The N-vinyl-2-pyrrolidone-grafted-carboxymethylcellulose was synthesised by employing a free radical polymerization method in an N2 atmosphere. It was found that 0.661 g concentration of monomer was sufficient to afford the maximum grafting parameters viz. % grafting (%G), % efficiency (%E) % Add on (%A) % and conversion (%C), but these grafting indicators showed a decreasing trend with increasing

Abstract This study was carried out to evaluate the influence of high voltage polarity on a newly designed multi-pin upward electrospinning spinneret to produce poly (vinyl alcohol) nanofibers. Two different high voltage polarity configurations were applied to the spinneret and collector, namely collector charging configuration (configuration-1) and spinneret charging configuration (configuration-2)

Abstract In the present work, curing reaction of benzoxazine was studied with the incorporation of different weight percentage of polypyrrole (PPy). Conventional benzoxazine derived from Bisphenol-F, aniline (BF-a) and bio-based benzoxazine derived from cardanol, furfurylamine (C-f) were synthesized and studied. Significant change in curing temperature (Tp) was observed with the addition of PPy to

Abstract In this work, we studied polymer electrolytes (PEs) that had the natural polymer chitosan as their matrix host. Different quantities of an ionic liquid that contains the lanthanide dysprosium as part of the anion, were incorporated in the chitosan matrix through the solvent casting method. The thermal, morphological and electrochemical properties of the membranes were accessed. The results

Abstract This study focuses on producing 3-layer films out of Low-Density Polyethylene (LDPE) and Thermoplastic Starch (TPS) using the latter to improve the film oxygen barrier properties. Potato and corn-based TPS, plasticized with glycerol, have been prepared and blended with LDPE using a twin-screw extruder. The TPS fraction was varied from 50 to 80 wt%. The effect of a maleated copolymer as blend

Abstract Superabsorbent polymers of guar gum -graft-acrylamide were synthesized using KPS as a free radical initiator in the presence of Tetra (ethylene glycol) diacrylate as a cross linker using solution graft copolymerization technique. The structures of the grafted copolymers GG-g-PAAm were characterized by FT-IR spectroscopy thermo gravimetric and SEM analysis. The effect of reaction parameters

Abstract In the present study investigated the effect of curcumin (CUR), beta (β) and gamma (γ) cyclodextrin (CD) complexes on its solubility, stability, antioxidating activity and bioavailability. CUR the active principle of turmeric is a natural antioxidant agent with potent anti-inflammatory activity along with chemotherapeutic and chemopreventive properties. Poor solubility and poor oral bioavailability

Abstract In this study, inverse emulsion polymerization (IEP) of acrylamide (AAm) and 2-acrylamido-2-methyl-1-propane sulfonic acid (AMPS) was conducted with a constant monomer AAm/AMPS feed ratio of 80%:20%. The effects of important reaction parameters on monomer conversion, intrinsic viscosity and molecular weight of nanostructured polymers (NSPs) were comprehensively assessed and the optimal synthesis