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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
2010-03-01
Source PublicationCHINESE JOURNAL OF POLYMER SCIENCE
ISSN0256-7679
Volume28Issue:2Pages:257-267
AbstractA 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.
KeywordDualfunctional Monomer Graft Copolymer Nitroxide-mediated Living Free Radical Polymerization Polycondensation Wholly Aromatic Polyamide
DOI10.1007/s10118-010-9038-5
Indexed BySCI
Language英语
WOS IDWOS:000274500600014
PublisherSPRINGER
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/71010
Collection中国科学院化学研究所
Corresponding AuthorWan, Xin-hua
AffiliationPeking Univ, Coll Chem & Mol Engn, Key Lab Polymer Chem & Phys MOE, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China
Recommended Citation
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]. CHINESE JOURNAL OF POLYMER SCIENCE,2010,28(2):257-267.
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.CHINESE JOURNAL OF POLYMER SCIENCE,28(2),257-267.
MLA Guan, Yan,et al."Synthesis and characterization of graft copolymers based on poly(p-phenylene terephthalamide) backbone and well-defined polystyrene side chains".CHINESE JOURNAL OF POLYMER SCIENCE 28.2(2010):257-267.
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