Synthesis and characterization of graft copolymers based on   poly(p-phenylene terephthalamide) backbone and well-defined polystyrene   side chains

doi:10.1007/s10118-010-9038-5

CORC > 北京大学 > 化学与分子工程学院

	Synthesis and characterization of graft copolymers based on poly(p-phenylene terephthalamide) backbone and well-defined polystyrene side chains
	Guan, Yan ; Zheng, Yi-jun ; Cui, Jia-xi ; Wan, Xin-hua
刊名	高分子科学英文版
	2010
关键词	Dualfunctional monomer Graft copolymer Nitroxide-mediated living free radical polymerization Polycondensation Wholly aromatic polyamide TRANSFER RADICAL POLYMERIZATION AROMATIC POLYAMIDES KEVLAR-49 FIBER SURFACE POLYIMIDES CRYSTAL
DOI	10.1007/s10118-010-9038-5
英文摘要	A novel dualfunctional monomer, 2-(2',2',6',6'-tetramethyl-piperidinyl-1'-oxy)methylbenzene-1,4-dioyl chloride hydrochloride, with two acid chloride groups for step-growth polymerization and a nitroxide group for the mediation of living radical polymerization was synthesized. It was first copolymerized with terephthaloyl chloride and p-phenylenediamine at a feed molar ratio of 1:3:4 in N-methyl-2-pyrrolidone containing 10 wt% calcium chloride at -10A degrees C to yield a poly(p-phenylene terephthalamide) based macroinitiator, which initiated radical polymerization of styrene at 125A degrees C to obtain a series of poly(p-phenylene terephthalamide)-g-polystyrenes. A combinatory analysis of proton nuclear magnetic resonance spectroscopy, Fourier transform infrared spectroscopy, elementary analysis, thermogravimetry and gel permeation chromatography indicated that the macroinitiator induced the radical polymerization of styrene to proceed in a well-controlled way. The molecular weight of side-chains increased with an increase of monomer conversion, and the molecular weight distribution index remained lower than 1.5. The graft copolymers showed a remarkably improved solubility in N-methyl-2-pyrrolidone and much depressed crystallinity in bulk.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000274500600014&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Polymer Science; SCI(E); 中国科技核心期刊(ISTIC); 中国科学引文数据库(CSCD); 10; ARTICLE; 2; 257-267; 28
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/151186]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Guan, Yan,Zheng, Yi-jun,Cui, Jia-xi,et al. Synthesis and characterization of graft copolymers based on poly(p-phenylene terephthalamide) backbone and well-defined polystyrene side chains[J]. 高分子科学英文版,2010.
APA	Guan, Yan,Zheng, Yi-jun,Cui, Jia-xi,&Wan, Xin-hua.(2010).Synthesis and characterization of graft copolymers based on poly(p-phenylene terephthalamide) backbone and well-defined polystyrene side chains.高分子科学英文版.
MLA	Guan, Yan,et al."Synthesis and characterization of graft copolymers based on poly(p-phenylene terephthalamide) backbone and well-defined polystyrene side chains".高分子科学英文版 (2010).