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Synthesis of three-arm poly(ethylene glycol) by combination of controlled anionicpolymerization and ‘click’ chemistry
关键字:controlled anionic polymerization, ‘click’ chemistry,three-arm poly(ethylene glycol),synthesis Poly(ethylene glycol) (PEG) is an important water-soluble polymer, which is widely used in the biomedical field because
of its good biodegradability, biocompatibility and permeability. It is usually synthesized by anionic polymerization of
ethylene oxide but side reactions lead to the formation of some oligomers. High molecular weight PEG can be obtained,
however, through coordinated anionic po...
http://www.polymer.cn/research/sy_info14795 |
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An investigation of negative air ions releasing properties of tourmaline contained poly (ethylene terephthalate)
关键字:negative air ions, releasing properties, tourmaline contained poly (ethylene terephthalate) The releasing properties of negative air ions of tourma ne contained poly (ethylene terephthalate) (PET) fibers u er frictional testing conditions were investig ted in this study. It is interesting to note that the maximum co...
http://www.polymer.cn/research/ct_info419 |
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Effect of Pre-process Drying of Cellulose on the Properties of Cellulose Fiber Reinforced Poly (lactic acid) Biocomposites
关键字:injection molding, poly (lactic acid) , biocomposite, cellulose, moisture content In the last few decades due to growing enwronmental friendly consciousness9 renewable resource based and biodegradable polymers gain more and more attention. One of the most promising polymers of the biopolymer family is&n...
http://www.polymer.cn/research/dis_info17276 |
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Fabrication and Characterization of Nano-HAp Reinforced Poly-D-L-Iactide Scaffolds with Poly (ethylene glycol) /Dexamethasone Coatings
关键字:pdlla/nano-hap composites, porous, drug release, shape memory effect Multifunctional scaffoldscl] , which have controllable biodegradability, drug delivery function, and shape memory effect, have been attracting great research interest in the field of bone tissue&nb...
http://www.polymer.cn/research/dis_info17215 |
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The effects of WS-ZnO nanoparticles on mechanical properties of the Poly (N-isopropylacrylamide) / Watersoluble nano-ZnO@clay nanocomposite hydrogels
关键字:Water-soluble nano-ZnO; nanocomposite hydrogel; Poly (N-isopropylacrylamide); mechanical property We describe the synthesis of Poly (N-isopropylacrylamide)/Water-soluble nano-ZnO @clay nanocomposite hydrogel (PNIPAm/WS-nZnO@clay gel) and characterize the mechanical properties of this novel nanocomposite hydrogel. And the existing formation of Water-soluble...
http://www.polymer.cn/research/dis_info14052 |
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Investigation of pH responsive nanogels with semi-interpenetrating polymer network structure
关键字:nanogels; Semi-interpenetrating polymer network (semi-IPN); pH responsiveness; poly(acrylic acid);poly(N-isopropylacrylamide) The nanogels with semi-interpenetrating polymer network (semi-IPN) structure based on cross-linked poly(N-isopropylacrylamide) (PNIPAM) and linear poly(acrylic acid) (PAA) were fabricated by one-step precipitation polymerization technique. The chemical composition&...
http://www.polymer.cn/research/dis_info14019 |
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Investigation on ionic polymer actuators based on irradiation-crosslinked sulfonated poly(styrene-ran-ethylene)
关键字:ionomer, poly (styrene-ran-ethylene), ionic polymer metal composites The ion-exchange membrane, Nafion, remains as the benchmark for a majority of research and development in IPMC technology. In this research, we employed a novel ionomer named by sulfonated poly(styrene-ran-ethylene) (SPSE) that is cros...
http://www.polymer.cn/research/dis_info13957 |
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Rheology of poly(acrylonitrile-co-acrylamide)/1-butyl-3-methylimidazolium chloride solutions with various molecular weights
关键字:rheology; poly(acrylonitrile-co-acrylamide); ionic liquids; molecular weight; intrinsic viscosity Shear rheology of poly(acrylonitrile-co-acrylamide) (poly(AN-co-AM)) solutions with different average molecular weights in 1-butyl-3-methylimidazolium chloride ([BMIM]Cl) was investigated in a large range of concentrations (0.1 wt%~14 wt%) at temperature 80&nb...
http://www.polymer.cn/research/dis_info13938 |
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PRELIMINARY STUDY OF THE RELATIONSHIP BETWEEN WATER ABSORBENCY AND ZETA POTENTIALS OF CROSSLINKED POLY(ACRYLIC ACID)
关键字:poly(acrylic acid), water absorbency, zeta potential, neutralization degree Crosslinked poly(acrylic acid) (PAA) superabsorbent polymers were prepared and characterized. The factors influencing water absorbency and zeta potentials of PAA such as monomer neutralization degree, pH solutions, and NaCl concentrations were s...
http://www.polymer.cn/research/dis_info13899 |
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酯交换诱导PTT/PBS 共混物的共结晶行为研究
关键字:Cocrystallization, Transesterification, Copolyester, Poly(trimethylene terephthalate), Poly(butylene succinate) 可降解高分子材料的开发是世界上的研究热点。其中,脂肪族聚酯力学性能较差且价格较高,而芳香/脂肪共聚酯则能克服以上缺点。
http://www.polymer.cn/research/dis_info13561 |
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