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19 articles for “Copolymers”
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Advances in Copolymer Synthesis and Their Industrial Applications
Abstract: Copolymers, composed of two or more distinct monomers, have seen tremendous growth due to their adaptability in creating materials with enhanced properties for diverse applications. Recent advances in synthesis techniques, such as controlled radical polymerization (CRP), ring-opening polymerization (ROP), and living polymerization have enabled precise control over copolymer architectures, offering tailored properties, such as improved thermal stability, flexibility, and biodegradability. These advancements have had a transformative impact across various industrial …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 10, Issue 2, 2024 · pp. 51–56 Read article
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Sulfur-Based Copolymers: Current Status and NewOpportunities in Synthesis and Product Applications
Abstract: Sulfur-based copolymers are fascinating materials with a wide range of applications. This reviewarticle delves into the synthetic aspects of sulfur copolymers, their characteristics, and theirapplications. Sulfur is a byproduct of refineries, produced in large quantities worldwide. Varioussulfur-based copolymers have been synthesized through inverse vulcanization, catalyst-induced low temperature inverse vulcanization, and polycondensation reactions. Researchers have studied a varietyof monomers, including benzoxazine moieties and sulfur-based systems with allylic or vinylicfunctionalities. The article …
Published in International Journal of Polymer Science and Engineering · Vol. 11, Issue 1, 2025 · pp. 10–36 Read article
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Formulation and Characterization of Polyhydroxyalkanoates Copolymer Nanoparticles for Controlled Drug Release
Abstract: The present study was focused on the formulation of polyhydroxyalkanoates copolymer nanoparticles (PHANPs) for in vitro controlled release of the drugs, viz. levofloxacin and amoxicillin. The PHANPs were synthesized by a triple emulsion method and conjugated with amoxicillin and levofloxacin to improve its remedial bioavailability. The PHANPs and drug conjugatedPHANPs were analysed using Scanning Electron Microscopy (SEM), Fourier Transform Infrared (FTIR) spectroscopy and X-Ray Diffraction (XRD). The cell viability % …
Published in International journal of Nanobiotechnology · Vol. 6, Issue 2, 2020 · pp. 1–11 Read article
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A Critical Evaluation of Polypropylene Impact Copolymer Morphology
Abstract: In order to improve Polypropylene (PP) impact strength, the process of copolymerizing propylene with ethylene is being used. Polypropylene copolymer is essentially a rubber-toughened material consisting of polypropylene homo-polymer matrix in which ethylene-propylene rubber (EPR) is distributed. The overall impact behavior of the copolymer is solely controlled by the rubber morphology and its distribution in polypropylene matrix, which plays a critical role on crystallinity. Even a similar impact grade polypropylene …
Published in International Journal of Polymer Science and Engineering · Vol. 5, Issue 2, 2019 · pp. 1–8 Read article
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Guar Gum and Its Graft Copolymers: An Overview
Abstract: Guar gum, a naturally occurring polysaccharide, is being widely used in numerous applications. Guar gum is modified by graft copolymerization to improve upon properties. Grafting is an innovative method to produce a new class of semi synthetic polymeric materials. In grafting, while the original properties of polymer remain intact, some additional and useful properties are incorporated. Natural polymers are available in huge quantities on Earth, since billions of years. Guar …
Published in International Journal of Analytical and Applied Chemistry · Vol. 2, Issue 1, 2016 · pp. 15–22 Read article
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Application of Taguchi Method for Optimization of Reaction Parameters in Graft Copolymerization onto Guar Gum
Abstract: In this article, Taguchi method is used to theoretically optimize the various reaction parameters and their interactions that may affect the end properties of Guar Gum Grafted copolymers made in a laboratory glass reactor. An attempt has been made to assess and predict the effect of temperature, monomer (Acrylonitrile) concentration and Guar Gum concentration on % grafting. In the present study effect of above mentioned three reaction parameters on the …
Published in International Journal of Chemical Engineering and Processing · Vol. 3, Issue 2, 2017 · pp. 12–18 Read article
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Emulsion Paint Formulation from Black Seed Powder/Soya Bean Oil Copolymer Binder
Abstract: The study focused on creating a water-based paint using a locally accessible pigment (black seed powder) and soya bean oil. Soya bean oil’s hydrophobicity is incorporated into the paint matrix. The physical and mechanical qualities of the developed emulsion paint were tested. Results were positive for tackiness, stability, blistering, flexibility, and chemical resistance. Physical parameters measured included pH (8.35), density (1.09 g/cm3), viscosity (4.2 m2/s), opacity (4.8 m2/l), drying time …
Published in International Journal of Environmental Chemistry · Vol. 12, Issue 1, 2026 · pp. 47–52 Read article
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Grafting of Starch: Synthesis and Thermal Properties
Abstract: Starch chloroacetate (St.ClAc) as a macro-initiator was pre-synthesized with reaction of primary OH groups on powder starch and characterized. In this study, the graft copolymer of St.ClAc with the previously synthesized 2-(4-methoxyphenylamino)-2-oxoethyl methacrylate (MPAEMA) and N-cyclohexylmethacrylamide (NCMA) monomer was made by atom transfer radical polymerization method (ATRP). St.ClAc and its graft copolymers (St.ClAc-g-MPAEMA and St.ClAc-g-NCMA) were characterized by FT-IR spectra and elemental analysis. In addition, thermal stability of these new …
Published in International Journal of Applied Nanotechnology · Vol. 6, Issue 1, 2020 · pp. 23–29 Read article
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Execution of Poly Coatings and Corrosion of Copper
Abstract: The erosion defensive poly(aniline-co-o-toluidine) (PAOT) coatings were integrated on copper (Cu) by the electrochemical copolymerization of aniline with o-toluidine under cyclic voltammetry conditions. Fluid oxalate arrangements were utilized as the supporting electrolytes for the amalgamation of PAOT coatings on Cu. The FTIR and 1H NMR spectroscopy examines uncover that the copolymerization of aniline and o-toluidine happens on Cu substrates from a fluid oxalate arrangements and bringing about PAOT copolymer, there …
Published in International Journal of Metallurgy and Alloys · Vol. 1, Issue 2, 2015 Read article
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Effects of Coupling Agent and Nanoclay on the Mechanical, Morphological and Dimensional Stability of Natural Fiber/Polypropylene Composites
Abstract: Polymer nanocomposite is made up of polymer as a matrix ingredient and reinforcement ingredient as a filler in the form of nanometer particles. These ingredients have dissimilar physical and chemical features and are mixed to generate sole features of nanocomposites. Polypropylene (PP) was nominated as the polymer matrix ingredient. Reinforcement ingredients used include organically modified montmorillonite with natural fiber. Various composites based on polypropylene, natural fiber, and organically modified montmorillonite …
Published in International Journal of Composite Materials and Matrices · Vol. 8, Issue 1, 2022 · pp. 9–18 Read article
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Photo-Catalytic Degradation of Dyes Using Graphene Oxide–Dithizone Composite
Abstract: Graphene oxide–dithizone (GO–DTZ) composite was successfully synthesized through the copolymerization of graphene oxide and dithizone to develop an efficient photocatalytic material for wastewater treatment. The dithizone polymer was prepared using a 1:2 molar ratio, while graphene oxide was synthesized via the modified Hummers’ method to obtain highly oxidized graphene sheets with abundant oxygen-containing functional groups. The GO–DTZ nanocomposite was fabricated by ultrasonically dispersing graphene oxide with the synthesized dithizone polymer …
Published in International Journal of Analytical and Applied Chemistry · Vol. 12, Issue 2, 2026 · pp. 46–53 Read article
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A Study on Machine-Learning-Driven Insight into theThermal Behavior of Polymers and Composite Materials
Abstract: The thermal performance of polymeric and composite systems underpins their suitability for aerospace, electronics, and energy‑storage applications, yet reliable prediction of temperature‑dependent properties remains a formidable challenge. In this work we present a data‑driven framework that harnesses modern machine‑learning (ML) techniques to forecast key thermal metrics – glass‑transition temperature (Tg), melting point (Tm), thermal conductivity (k), and decomposition onset (Td) – from a chemically informed descriptor space. A curated database …
Published in International Journal of Polymer Science and Engineering · Vol. 12, Issue 1, 2026 · pp. 1–11 Read article
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Synthesis of Brominated Poly (Isobutylene-co-Isoprene) Based Ionomers and Its Applications
Abstract: Reactive bromobutyl rubber and its modification have been studied in detail. These reactive bromobutyl rubber was converted to ammonium and phosphonium functionalized bromobutyl rubber using triphenyl phosphine (PPh3) and 4-Dimethylaminopyridine (4-DMAP). Mechanical properties of synthesized ionomers are found comparative with butyl rubber. Pharma stopper was made from synthesized phosphonium ionomer that may be useful for pharma industries due to its self-healing characteristics which can help to preserve the properties of …
Published in International Journal of Composite Materials and Matrices · Vol. 11, Issue 1, 2025 · pp. 47–55 Read article
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Nanofibers of Ultra-High Molecular Weight Polypropylene (UHMWPP) Composites: Processing, Properties and Applications
Abstract: The nanofibers of ultra-high molecular weight polypropylene (UHMWPP) composite made with polyethylene terephthalate (PET) by electrospinning process. The high-temperature setup developed by hardware modifications in electrospinning machine to perform such experiments. Bilayer composite mat of UHMWPP and PET nanofiber was fabricated by deposition of monolayer of UHMWPP over PET monolayer by electrospining process. The developed composite mat products were characterized by SEM, DSC and other physico-chemical methods. The composite mat …
Published in International Journal of Polymer Science and Engineering · Vol. 11, Issue 1, 2025 · pp. 35–48 Read article
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Mechanical, Thermal, and Electrical Properties of Poly(ether-ester)-Based Thermoplastic Elastomer Composites Filled with ZnO Nanoparticles
Abstract: A highly helpful technique to create novel polymeric materials with ordered and customized features is blending two or more immiscible polymers. The outstanding balance between processability and physical characteristics of thermoplastic polyester elastomers, particularly when using hydrogenated styrene–butadiene copolymer, makes them appealing materials for a variety of applications, including the automotive industry. New opportunities for tailored flexible composites with improved mechanical and chemical properties are made possible by reinforced polymers …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 10, Issue 2, 2024 · pp. 33–42 Read article
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Nanocomposite Hydrogels for Water Purification
Abstract: DNA hydrogels have been demonstrated as versatile catalysts, potential adsorbents, sensors and immobilization carriers of bioactive molecules. They are a type of tenuous, semiflexible polymeric network that consists of precisely designed synthetic nucleotide strands as chemical or physical cross-linkers. Hydrogels have been widely studied due to their improved physicochemical properties and used as antibacterial platforms, wastewater pollutants, adsorbents and drug deliverers. Because of their biocompatibility and the ability to mix …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 4, Issue 2, 2018 · pp. 17–21 Read article
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Hydrogels Based on Guar Gum: A Review
Abstract: Polysaccharide-based hydrogels are potential materials for wide range of medical applications i.e., tissue engineering, controlled drug delivery and local therapy etc. An interesting fact related to hydrogels is their ability to be injected without any modification in their chemical, mechanical and/or biological properties, due to their thixotropic behavior. It is also feasible to alter the rheological and chemical-physical properties of polysaccharide hydrogels by modifying the cross-linking agents and exploiting their …
Published in International Journal of Agrochemistry · Vol. 2, Issue 2, 2016 · pp. 1–16 Read article
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Effect of Compatibilizers on Polypropylene-Based Peanut Shell Flour Composites Reinforced with Nanoclay
Abstract: The improvement of innovative ingredients is on the rise, especially in the automobile, aerospace, aviation, and construction industries. Conventional ingredients are being substituted with nanocomposite ingredients due to their excellent features. In this study, various composites based on polypropylene (PP), peanut shell flour (50 wt% PSF), and nanoclay (Cloisite 30B) were manufactured by melt mixing process followed by injection molded in the presence of maleated PP (PPM) and maleated styrene …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 8, Issue 2, 2022 · pp. 1–13 Read article
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Synthesis of Bromobutyl Rubber: Effect of Reaction Temperature and Time on Bromobutyl Rubber Microstructure
Abstract: Butyl rubber is prepared by cationic polymerization process either by solution or slurry phase by randomly copolymerizing isobutylene with small amount of isoprene (1-3 mol %). It has good air impermeability and oxidative stability and thus finds extensive use in inner tube applications. The presence of unsaturation in the form of isoprene units in butyl rubber provides a means of enhancing useful properties of this important commodity elastomer by incorporation …
Published in International Journal of Composite Materials and Matrices · Vol. 9, Issue 1, 2023 · pp. 30–39 Read article