ABSTRACT A grafted polymer/inorganic hybrid combining the properties of silica nanoparticles (Rav = 7.7 nm) and polyacrylamide (SiO2-g-PAAm) was synthesized, characterized and used as a matrix for in situ synthesis of silver nanoparticles (AgNPs). In the “core”-“corona” hybrid nanostructures, PAAm grafts were additionally bonded to the silica surface by H-bonds. The reduction of Ag+-ions in SiO2-g-PAAm

ABSTRACT This review aimed to provide a trend and evolution on the methods of conducting terpolymer synthesis and its applications for the first time in the open literature. Lots of attention was on homopolymer and copolymer in the onset of research on conducting polymers, but quest for improved optical, electrochemical, and conductive properties borne research in conducting terpolymerization. It comes

ABSTRACT Herein, a simple strategy was proposed for multi-scale construction of low-κ epoxy composites by adding a kind of polyhedral oligomeric silsesquioxane@graphene oxide hybrids. Results revealed that the dielectric constant of the composites was decreased with increasing the frequency, and it was decreased first and then increased with increasing the fillers loading. The AC resistivity values

ABSTRACT A SPPO/IL composite membrane was obtained by self-assembly using the SPPO with the highest degree of sulfonation and the prepared ionic liquid (1-methyl-3-methylimidazolium). SPPO/IL composite membrane is doped with phosphoric acid to form SPPO/IL/PA composite membrane. The SPPO/IL composite membrane is immersed in PA for 24 h, the ion conductivity reaches 36.1 mS/cm. The mechanical stability

ABSTRACT The synthesis of polyetherols based on (hydroxypropyl)cellulose, functionalized with glycidol, and ethylene carbonate was elaborated. All conversions were performed in glycols. The products were characterized by IR, 1H NMR, and MALDI ToF spectroscopy. The polyetherols were then used to obtain rigid polyurethane foams. These foams have apparent density, water uptake, and polymerization shrinkage

ABSTRACT This study investigated different factors to improve the separation performance of membranes composed of polyvinyl alcohol (PVA) and a water absorbing agent. The effects of the compositional differences and additive addition to the prepared membranes on the separation performance were evaluated for the separation of CO2 and He at Ptotal values of 0.1 and 0.7 MPa at 60°C and 85°C, respectively

ABSTRACT Advanced polymeric materials have attracted tremendous attention in recent years as the promising materials for the development of next generation energy technology. These polymeric materials have witnessed impressive electrochemical performance improvement in energy conversion and storage devices with the advances in understanding and design of advanced-nanostructured materials such as carbon-based

ABSTRACT Polyetherimide (PEI) nanoparticles with the size range from about 200 nm to 1 μm were successfully prepared from a PEI/DMSO solution by a simplified cooling-down method. The formation of PEI nanoparticles is caused by the temperature drop. The particle size is related to the temperature, cooling time, and PEI concentration. At low concentrations, well-separated PEI nanoparticles appear, and

This review encompasses detailed knowledge about recent advancement in the synthesis of novel Nanohybrids. The materials based on matrix component as epoxy and Polyamide with the specified carbon nano-bifiller carbon nanotubes and nano-diamond have been discussed in detail due to their novelty and endless applications in various industries. Limited research have been carried out regarding synthesis

In the field of anticorrosion, epoxy resin plays an important role. Therefore, many researchers have reported the strategy, manufacturing technology, and application of epoxy anticorrosive coatings all over the world. In this paper, three basic ideas for improving the anticorrosion performance of epoxy resin anticorrosive materials are summarized, and the current strategies for developing new epoxy

In recent years, experimentation on organic conducting polymers has been escalated and many interested researchers are looking forward to exploring more in the area of optoelectronics. Due to advantageous properties including easy tunability, flexibility, processability, thermal stability, and electroluminescence, conducting property seen to have diverse applications, but in here focus is specifically

The present study focuses on fabrication and characterization of halloysite nanotube (HNT) filled polyamide 6,6 nanocomposite fibers. HNTs were incorporated into the spinning solution at various concentration levels changing from 5 to 30 wt%. To understand the changes in the fiber morphology, viscosity, and conductivity of the electrospining solutions were also investigated. Depending on the filler

The polypeptide, poly(AVGVP), a prominent member of the synthetic polypeptides (PLP), exhibiting plastic properties for biomedical applications. Their miscibility characteristics with polyacrylamide (PAM) were scrutinized in different weight proportions manipulating viscometry in the aqueous phase. The interaction parameters confirmed that the two polymers are miscible up to 20/80 weight portion of

Polypropylene random copolymer (PPR) and polybutene-1(PB-1) are blended and long-chain branched (LCB) in the reactive extruder. The optimum amount of PB-1 resin, peroxide (DCP) and trimethylolpropane triacrylate (TMPTMA) for long-chain branching of PPR and probe topology formed by the branches were investigated. Fourier transformed infrared spectroscopy (FTIR) used to measure the branching degree and

This paper describes the synthesis of polyindole by chemical oxidative polymerization using copper chloride as oxidant. Polyindole was characterized by various spectroscopic techniques like FT-IR, XRD, FESEM, and TGA. The XRD pattern confirms the semi-crystalline nature of polyindole. An efficient, solvent-free, ultrasound-assisted synthesis of biologically active 3,4-dihydropyrimidin-2(1 H)-one/thiones

In this study, a simple and efficient hydrothermal carbonization method was proposed to synthesize anhydrous magnesium carbonate (MgCO3) particles with block-, cube-, corncob-, and sphere-like morphologies, and their crystal phase, chemical structure, and thermal stability were characterized by X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy and thermogravimetric analysis (TGA)

A medical microneedle candidate material is prepared bases on polylactic acid (PLA), poly(ethylene glycol) (PEG), and low content of multi-walled carbon nanotubes (MWCNT) composites. A successive self-nucleation and annealing analysis was applied and the presence of PEG and the MWCNT ratio had a significant influence on the processability of PLA. The composites show much better tensile strength and

The advent of nanotechnology, and hybridization of nanomaterials such as graphene, carbon nanotubes, nanoclay and so on, with natural fibers in polymeric materials have resulted in formation of polymer fiber nano-biocomposites. Accruable properties garnered from these materials amongst many include thermal stability, enhanced electrical and thermal conductivity, reduced thermal expansion, enhanced

A novel photodegradable Methylene Blue (MB)/TiO2/PVC film was prepared. The physical and mechanical properties, hydrophilicity, and the thermal stability of the film before irradiation were characterized. The photodegradability test was performed by using gel permeation chromatography (GPC), infrared spectroscopy (FT-IR), ultraviolet-visible spectroscopy (UV-vis), and scanning electron microscopy (SEM)

Maleimides, due to their unsaturated cycle, represent a starting point in obtaining the synthetic compounds in the organic and macromolecular chemistry. The applications of the compounds based on mono- and bismaleimides are varied in different fields. This study aims to show and discuss the applications of these compounds in the last decades and is structured in chronological order, depending on their

Dopamine (DA) is biologically important molecule, which plays a vital role in hormonal, renal, cardiovascular, and central nervous systems. Since abnormal level of this biological molecule leads to several diseases, its accurate and fast monitoring is of great importance for clinical diagnosis and treatment. The electrochemical approaches have become of significant interest to fulfill the requirements

Firstly, the polyvinyl alcohol/polyacrylic acid double network hydrogels were prepared by physical and chemical double cross-linking, then polyethylene glycol, chitosan, and hydroxypropyl methyl cellulose were added to construct the multiple network hydrogels. The intermolecular chains were entangled with each other and the intermolecular force was gathered at the cross-linking point, which greatly

Herein, a kind of low-κ epoxy composites with excellent comprehensive properties were prepared by introducing chloride salt of octa (aminopropylsilsesquioxane). The dielectric constant (106 Hz) of the composite was decreased by 0.94 when the fillers loading was only 3 wt%. The thermal stability and shore hardness were both improved, and the water adsorption was reduced. The improved properties of the

With the slackening of fossil fuels and anxious about greenhouse gas emission culminate, the ever-expanding requirement for green renewable energy, and also to set up the energy with more efficiency. In this context, thermoelectric technology has been of great significance considering the potential growth of electrical energy to heat energy and vice versa through a thermocouple and uses the waste heat

The molecular surface imprinted graft copolymer of metal-organic framework MOF-5 with methacrylic acid were prepared by free radical polymerization with dibutyl phthalate as the template molecule using initiator of azobisisobutyronitrile as adsorption system. The prepared MIPs@MOF-5 were characterized by fourier transform infrared spectroscopy, scanning electron microscopy, Brunner−Emmet−Teller measurements

Nanomaterials have become an established area of academic research and have gained commercial importance due to their valuable physicochemical properties, such as large surface area, high mechanical strength as well as unique optical and electrical features. Numerous nanosize architectures have been researched and reported to date including quantum dots, fullerenes, nanorods, nanowires, nanofibers

In this work, boron nitride (BN) and exfoliated boron nitride nanosheets (BNNs) were employed as thermal conductive fillers to improve the thermal conductivity of poly(vinylidene fluoride) (PVDF) composites. Results suggested that the thermal conductivity of PVDF increases significantly with an increase in loading content of functional fillers. When the mass ratio of fillers was more than 30 wt%, the

Cast films, based on β-iPP, were prepared via melt extrusion, and, then annealed at different temperature. The effect of annealing on the properties of the cast films, as well as on microvoid formation and evolution was investigated. After annealing, the initial lamellar structure was improved, and more secondary crystals were formed which decreased the numbers of tie chains, which was beneficial to

Functionalization of multiwalled carbon nanotubes (MWCNTs) with amine group using 4,4′-diaminodiphenyl sulfone (DDS) is achieved after carboxylation of pure MWCNTs (p-MWCNTs). p-MWCNTs, a-MWCNTs (acid functional MWCNTs) and f-MWCNTs (amine functional MWCNTs) were used to fabricate their nanocomposite with PMMA. A comparative study of the humidity characteristics of p-MWCNTs/PMMA, a-MWCNTs/PMMA and

Herein, gold nanoparticles (Au Nps) imprinted polyacrylic acid/chitosan (PAA/CS) nanocomposite hydrogels are designed by in situ polymerization technique. The change in crystallite size and d-spacing is established from X-ray diffraction study. It is interesting to notice that the layered morphology of PAA/CS/Au nanocomposite hydrogel is achieved from field emission scanning electron microscopy due

Adjusting fibers shape can further optimize absorbing properties of the FeSiAlp/PP fibers composites. 80 wt% FeSiAlp/PP rhombic cross-sectional fibers were successfully prepared by liquid phase blending and extrusion drawing. The strength of the fibers is about 6 ~ 8 MPa. The effective absorption bandwidth (EAB, RL < −10 dB) of the resin matrix composites modified by rhombic cross-sectional fibers

In this work, characterization of polymer matrix composites was carried out. Thermoplastic polymers were used as a matrix. Nondestructive Young’s modulus values were compared with the destructive values. Differences between the destructive and nondestructive values are less than 10%. Reinforcements increased Young’s modulus. The principal strain values of the glass fiber-reinforced polymethylmethacrylate

The dielectric, thermophysical, optical, and hardness of pure polylactic acid (PLA) and hBN micropowder and Al2O3 nanopowder (1% to 30%) reinforced PLA hybrid composites were investigated. Hybrid composites exhibit improved thermal conductivity (k – 0.54 W/mK), permittivity (ɛꞌ – 4.6720 @ 1 MHz to 1 GHz) with very low loss tangent (tan δ < 0.02). High absorption in UV region was observed for all hybrid

In this study, attention has been paid to synthesize and investigate pH-sensitive biopolymeric hydrogel from renewable resource-based monomers such as citric acid, pyrrole-2-carboxylic acid, and ethylenediamine through two-step condensation polymerization. The formation of hydrogel and structure of hydrogel were confirmed by Fourier-transform spectroscopy and nuclear magnetic resonance spectroscopy

Preparation of poly(thiophene-alt-pyrrole bearing mesogen) was carried out with Migita–Kosugi–Stille coupling type polycondensation with an aid of Pd(0) complex catalyst. The resultant polymer shows lyotropic liquid crystallinity with good film-forming property. The smectic fan-shaped texture is maintained after completion of evaporation of solvent from the polymer solution. The cast film having liquid

Solid polymer electrolytes (SPEs) have been widely studied due to its extensive applications in high energy rechargeable batteries, supercapacitors, fuel cells, photoelectrochemical and electrochromic displays. Herein, SPEs based on polyvinyl pyrrolidone (PVP) doped with cesium aluminate (CsAlO2) nanoparticles (NPs), lithium perchlorate (LiClO4) as an electrolyte and varying amounts viz., 2, 4, 6 and

A facile and a novel method for synthesis of poly(o-toluidine)-Li nanocomposite, in an aqueous medium, by in-situ method, has been reported. The composite has been synthesized using green route method and explored as a material for energy storage. Characteristics of the synthesized nanocomposite have been studied using Fourier transform infraredspectroscopy, X-ray diffraction, cyclic voltammetry, ultraviolet-visible

In this paper, the effect of SiO2 nano-particles on PVA-PVP-PEG-NaI based polymer blend electrolyte (PBE) films was studied and optimized. X-ray diffraction (XRD) and attenuated total reflection (ATR)-FTIR, thermo-gravimetric analysis (TGA), and ac impedance spectroscopic techniques have been used to study the structural, thermal, and dc conductivity, respectively. XRD results reveal that the characteristic

Modified nanosize rice husk powder (i.e. mod.nRHP; mod.nRHP-MA-RAFT-H)/ethylene propylene diene monomer (EPDM) nanocomposite was prepared by solvent casting method. The surface of nano rice husk (n-RHP) was treated with maleic anhydride (MA) to yield n-RHP-MA, then, aliphatic hyperbranched polyester (H) was end capped with RAFT agent to obtain H-RAFT. Afterward, H-RAFT-was successfully anchored onto

The state-of-the-art article presents concepts of nanobelt nanofiller, inimitable properties of derived polymeric nanocomposite, applications, and outlook on challenges to gain next generation high-performance materials. Nanobelt is a one-dimensional nanostructured nanomaterial. Owing to minuscule size and high surface area, nanobelt possesses unique structural, optical, electronic, mechanical, and

Polyethylene (PE)/epoxy blends filled with graphite were prepared and studied in this work. The in-plane and through-plane conductivities of the composites increased from 11.68 Scm−1 to 73.11 Scm−1 and 0.20 Scm−1 to 4.12 Scm−1, respectively, as graphite content increased from 30 to 80 wt%. Phase bonding effect of the compatibilizer and reinforcing effect of the filler enhanced the flexural modulus

Flexible conductive polymer composites with good mechanical property play an important role in the modern electronic industry. In this study, aromatic poly(amide-imide) (PAI) and thermoplastic polyurethane (TPU), functionalized multi-wall carbon nanotube (FMWCNT) and reduced graphene oxide (RGO), were, respectively, used as polymer matrix and conductive filler to fabricate conductive polymer composites

The hydrophobic polyether sulfone membranes were prepared by the sol-gel method to be applied in an air gap membrane distillation setup for desalination. The surface modifications were carried out using Trimethylsilyl chloride (TMSCl) and Methyltrimethoxysilane (MTMS) solutions. The membranes were characterized using Attenuated Total Reflection Infrared (ATR-IR) spectroscopy, Scanning Electron Microscopy

Silver nanocomposite (SNC) containing pH sensitivity with fascinating attention may be recommended for extensive utilization in eco-friendly nanomaterial applications. In the present investigation, a strategy to fabricate new biodegradable and biocompatible hydrogels based on sodium alginate/ethylene glycol/acrylic acid functionalized with silver nanocomposites, which were synthesized by a facile greener

A solid-state supercapacitor was designed based on conjugated polymer – quantum dots composite synthesized by the in-situ chemical method. The polypyrrole-graphene quantum dots composite (PGC) was used to preparation of flexible supercapacitor electrode with various PVA/KOH, PVA/H3PO4, PVA/H2SO4, PVA/KCl gel electrolytes. It is observed that PPY-GQDs exhibited a maximum specific capacitance of 730 F/g

Lithium (Li+) ion conducting nanocomposite polymer blend electrolytes (NCPBEs) based on poly(ethylene oxide) (PEO), poly(vinylidene fluoride hexafluoropropylene) (P(VdF-HFP)) as polymer hosts, lithium perchlorate (LiClO4) as an electrolyte and strontium titanate (SrTiO3) as a nanofiller have been prepared by both the conventional stirring and ultrasonic irradiation methods. Complex formation and hence

Poly(ether-ketone)/hexagonal boron nitride (h-BN) composites reinforced with micrometer-sized h-BN particles were investigated. The composites exhibited glass transition temperature (Tg) and thermal stability over 160°C and 560°C, respectively. The melting point and peak crystallization temperatures of the composites decreased up to 17°C and 12°C, respectively. The linear CTE of the composites decreased

Three series of poly(ethylene-co-vinyl acetate)/mesoporous silica type SBA-15 (EVA/SBA-15) nanocomposites, containing 1, 2, 3, and 4 wt% SBA-15 nanoparticles were prepared by melt blending in internal mixer. The mesoporous silica SBA-15 was synthesized by the sol-gel method and organomodified by Hexadecyltrimethoxysilane (HDTMS). The terpolymer of Ethylene-butyl acrylate-maleic anhydride (E-BA-MA)

A new category of thermally stable and soluble polyketone (PKtph) together with its related zinc oxide-doped nanocomposites (PKtphZnOa-d) based on 4-tert-butylcyclohexanone moiety as a branched moiety was synthesized through Friedel–Crafts reaction. The desired PKtph characterized through certain characterization techniques including FTIR, viscosity, solubility, XRD, and gel permeation chromatography

Impedance spectroscopy-based electrical measurements were conducted on different molecular weight (MW) Poly(1,6-heptadiyne)s (PHDs) embedded PHD/NiFe2O4 nanocomposites. Nanocomposites conductivity result demonstrated the conductivities of around 3.5 × 10 − 6 − 16 × 10 − 6 S C m − 1 (nanocomposite Root mean square (RMS) current is 12–15 times greater than DC current of PHDs at 27° C). Additionally,

In this research, the silk fibers that were successfully extracted from silk cocoons using Na2CO3 were treated with silane coupling agent (3-aminopropyl)trimethoxysilane The silane treated and untreated silk fiber reinforced epoxy composites were fabricated using the hand lay-up technique. The effects of fiber loading and the presence of silane coupling agent on the mechanical, morphological, thermal

Microcapsules with TFA or TCA healing agents with an outer poly(melamine-urea-formaldehyde) (PMUF) were successfully synthesized for the first time, according to a review of published literature. The average sizes of the microcapsules obtained were measured to be 1.7 and 2 µm for TFA/PMUF and TCA/PMUF, respectively. Both microcapsules were separately added to an epoxy-based coating formulation. To

Novel nanocomposite smart hydrogel (NSH) and smart hydrogel (SH) are prepared to be used as a support for invertase. Spectrophotometric and thermal analysis methods were used for the characterization. Lower critical solution temperature values of SH and NSH were found as 32.68°C and 30.44°C, respectively. From the pH-responsive swellings performed at three different temperatures, the inflection point

A series of thermoplastic polyurethanes (TPUs) composed of polyethylene glycol polyurethane (PEG-PU) and polydimethylsiloxane polyurethane (PDMS-PU) were prepared to examine the effects of the PEG molecular weight (MW) on the surface and physical properties. The adaptive PEG-PU-co-PDMS-PU structures resembled the architectures of a diblock copolymer, which used the MW-fractionated PEG. The sufficient

Nanoemulsions are one of the systems being used for targeted drug delivery. Lipopeptide possesses antibacterial and anticancer activities, and eucalyptus essential oil offers antimicrobial and anti-inflammatory properties. In this study, a nanoemulsion based drug delivery system has been synthesized using the above combinations (eucalyptus essential oil and surfactin) for the first time and investigated

To investigate the influence of molecular structure of isotactic polypropylene (iPP) on the crystallization behavior and mechanical properties of its β-nucleated product, in this study, four iPP samples were selected. Results of molecular structure characterizations revealed that the molecular weight of the iPP resins are close, while the average isotacticities and the isotacticity distributions of

Polyimides form an important class of high-performance polymers. Polyamides with aromatic macromolecular architecture have revealed excellent conducting, mechanical, and thermal properties for aerospace, automotive, electronics, and other technical industries. Recently, polyimide nanofiber and polyimide nanocomposite nanofiber have been focused for fabrication, essential physical features, and subsequent

In this study, Zn(II) ion-imprinted polymer was prepared on the surface of vinyl silica particles and applied for detection of Zn(II) ions using differential pulse voltametry. The ion- imprinted polymer particles were prepared by free radical polymerization. The prepared particles were characterized by different morphological and elemental techniques. The ion-imprinted particles were used to fabricate

Nanoparticles, carbon nanotubes and polymers are widely used nowadays to improve biosensing phenomenon. However, studies considering impact of their combination on biosensor sensitivity are rarely reported. Present work involves synthesis of thin films using different combinations and comparisons of their properties. The metal (silver nanoparticles)-polymer (PVA), MWCNT-polymer and Metal-MWCNT-polymer

Polyvinylchloride (PVC)/nickel oxide (NiO)/tungsten oxide (WO3) nanocomposite films were prepared via solution casting technique. The crystallinity, morphology, and the analysis of dispersion state of PVC/NiO/WO3 nanocomposite was carried out using X-ray diffraction (XRD) and scanning electron microscopy (SEM). The dielectric studies of nanocomposite films were investigated and a maximum dielectric