International Journal of Polymer Science

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Synthesis and Characterization of Imide Containing Hybrid Epoxy Resin with Improved Mechanical and Thermal Properties
International Journal of Polymer Science - Tập 2014 - Trang 1-10 - 2014
U. G. Rane, Anagha Sabnis, Vikrant V. Shertukde
Phosphorous containing amine, tripropyldiamine phosphine oxide (TPDAP), and hybrid monomer 4-(N-phthalimidophenyl) glycidylether (PPGE) were synthesized and characterized by Fourier transform infrared (FTIR) spectroscopy, nuclear magnetic resonance (NMR) spectroscopy, and elemental analysis (EDX). PPGE was incorporated in bisphenol A epoxy resin (BPA) in various concentrations (5% to 20%),...... hiện toàn bộ
Bioinspired Polyethersulfone Membrane Design via Blending with Functional Polyurethane
International Journal of Polymer Science - Tập 2017 - Trang 1-10 - 2017
Mei Han, Qiang Liu, Baihai Su, Shudong Sun, Changsheng Zhao
Polyurethanes (PUs) are currently considered to be biocompatible materials but limited by a low resistance to thrombus. We therefore design a heparin-like PU (HLPU) to modify polyethersulfone (PES) membranes approaching integrated antifouling and antithrombotic properties by bioinspiration of heparin structure. Poly(vinyl pyrrolidone)-HLPU (PVP-HLPU) was synthesized via reversible addition...... hiện toàn bộ
Preparation and Structural Properties of Free Films from Rapeseed Oil-Based Rigid Polyurethane-Montmorillonite Nanocomposites
International Journal of Polymer Science - Tập 2013 - Trang 1-8 - 2013
Sergey Gaidukov, Uģis Cābulis, Karina Gromilova, Velta Tupureina, Agnese Grigaloviča
The preparation of free standing films of biobased rigid polyurethanes (PU) from rapeseed oil (RO) and diethanolamine (DEA) polyol and its modification with organomontmorillonite (OMMT) nanoparticles are described. Heat enthalpy of the interaction duringin situmixing of RO/DEA polyol and OMMT is measured in isothermal profile. The Fourier transform infrared spect...... hiện toàn bộ
Chemical Recycling of PET Wastes with Different Catalysts
International Journal of Polymer Science - Tập 2015 - Trang 1-11 - 2015
Mohammad Khoonkari, Amir Hossein Haghighi, Yahya Sefidbakht, Khadijeh Shekoohi, Abolfazl Ghaderian
Chemical recycling of polyethylene terephthalate, known as PET, has been the subject of increased interest as a valuable feedstock for different chemical processes. In this work, glycolysis of PET waste granules was carried out using excess ethylene glycol in the presence of different simple chemicals acting as catalysts, which are, namely, categorized in ionic liquids, metal salts, hydrot...... hiện toàn bộ
PBAT/TPS Composite Films Reinforced with Starch Nanoparticles Produced by Ultrasound
International Journal of Polymer Science - Tập 2017 - Trang 1-10 - 2017
Normane Mirele Chaves da Silva, Paulo Romano Cruz Correia, Janice Izabel Druzian, Fádi Fakhouri, Rosana Lopes Fialho, Elaine C. Cabral
The objective of the present work was to study the incorporation of starch nanoparticles (SNP) produced by ultrasound in blends of poly(butylene adipate-co-terephthalate) (PBAT) and thermoplastic starch (TPS). The films were produced by extrusion using varying percentages of SNP (1, 2, 3, 4, and 5% w/w). The SNP were prepared in water without the addition of any chemical reagent. The resul...... hiện toàn bộ
Preparation of Oligosaccharides by Degradation of Polysaccharides from Chinese Jujube and Its Biological Activity
International Journal of Polymer Science - Tập 2018 - Trang 1-8 - 2018
Yan Xu, Weiwei Wang, Mengjun Liu, Zhihui Zhao
This study examined the degradation of polysaccharides to oligosaccharides in Chinese jujube fruits. Using a response surface model, the degradation conditions of polysaccharides under acid hydrolysis and enzymatic hydrolysis were optimized in laboratory conditions. A degradation rate of 66.9% was obtained under optimum acid hydrolysis conditions: 0.6 mol/L hydrochloric acid, 3% substrate ...... hiện toàn bộ
Biosynthesis of Xanthan Gum from Fermenting Shrimp Shell: Yield and Apparent Viscosity
International Journal of Polymer Science - Tập 2014 - Trang 1-8 - 2014
Larissa Alves de Sousa Costa, Márcio Inomata Campos, Janice Izabel Druzian, Ana Maria de Oliveira, Ênio Nazaré de Oliveira
With the aim of producing xanthan gum, the effects of an aqueous shrimp shell extract (SSAE) as the source of carbon and nitrogen on the yield and apparent viscosity of the gums produced by fermentation using three native strains ofXanthomonas campestriswere studied. It was found that the SSAE contained 89.75% moisture, 0.054% ash, 8.069% protein, 0.787 lipids, a...... hiện toàn bộ
Investigation of Optimum Polymerization Conditions for Synthesis of Cross-Linked Polyacrylamide-Amphoteric Surfmer Nanocomposites for Polymer Flooding in Sandstone Reservoirs
International Journal of Polymer Science - Tập 2015 - Trang 1-14 - 2015
A.N. El-hoshoudy, Said E. Desouky, M. EL‐KADY, A.M. Al-Sabagh, Mohamed A. Betiha, S. A. Mahmoud
Currently enhanced oil recovery (EOR) technology is getting more attention by many countries since energy crises are getting worse and frightening. Polymer flooding by hydrophobically associated polyacrylamides (HAPAM) and its modified silica nanocomposite are a widely implemented technique through enhanced oil recovery (EOR) technology. This polymers class can be synthesized by copolymeri...... hiện toàn bộ
Polymeric Scaffolds in Tissue Engineering Application: A Review
International Journal of Polymer Science - Tập 2011 - Trang 1-19 - 2011
Brahatheeswaran Dhandayuthapani, Yasuhiko Yoshida, Toru Maekawa, D. Sakthi Kumar
Current strategies of regenerative medicine are focused on the restoration of pathologically altered tissue architectures by transplantation of cells in combination with supportive scaffolds and biomolecules. In recent years, considerable interest has been given to biologically active scaffolds which are based on similar analogs of the extracellular matrix that have induced synthesis of ti...... hiện toàn bộ
Effect of Particle Size of Additives on the Flammability and Mechanical Properties of Intumescent Flame Retarded Polypropylene Compounds
International Journal of Polymer Science - Tập 2015 - Trang 1-7 - 2015
Katalin Bocz, Tamás Krain, György Marosi
The effect of particle size reduction of the components of a common intumescent flame retardant system, consisting of pentaerythritol (PER) and ammonium polyphosphate (APP) in a weight ratio of 1 to 2, was investigated on the flammability and mechanical performance of flame retarded polypropylene (PP) compounds. Additives of reduced particle size were obtained by ball milling. In the case ...... hiện toàn bộ
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