Synthesis and Self-assembly of a Triarm Star-shaped Rod-Rod Block   Copolymer

doi:10.1007/s10118-015-1621-3

CORC > 北京大学 > 化学与分子工程学院

	Synthesis and Self-assembly of a Triarm Star-shaped Rod-Rod Block Copolymer
	Zhou, Feng ; Zhou, Qing-han ; Tian, Hai-jian ; Li, Chang-sheng ; Zhang, Yu-dong ; Fan, Xing-he ; Shen, Zhi-hao
刊名	高分子科学英文版
	2015
关键词	Star polymer Liquid crystalline polymer Block copolymer Self-assembly LIQUID-CRYSTALLINE POLYMERS TRANSFER RADICAL POLYMERIZATION LIVING ANIONIC-POLYMERIZATION BENZYL-L-GLUTAMATE DIBLOCK COPOLYMER POLY(ETHYLENE OXIDE) TRIBLOCK COPOLYMERS MOLECULAR-WEIGHT COIL BEHAVIOR
DOI	10.1007/s10118-015-1621-3
英文摘要	We designed and synthesized a triarm star-shaped rod-rod block copolymer (BCP), (poly{2,5-bis[(4-methoxyphenyl)-oxycarbonyl] styrene}-block-poly(gamma-benzyl-(L)-glutamate))(3), (PMPCS-b-PBLG)(3). The triarm core with three PMPCS-N-3 segments was prepared by copper-mediated atom transfer radical polymerization of 2,5-bis[(4-methoxyphenyl)-oxycarbonyl] styrene initiated by a trifunctional initiator and a subsequent azide reaction. And the PBLG block with alkyne functionality was synthesized through ring-opening polymerization of gamma-benzyl-(L)-glutamate N-carboxyanhydride initiated by propargylamine. Finally, Huisgen's 1,3-dipolar cycloaddition was employed to combine the triarm (PMPCS-N-3)(3) and PBLG segments. The chemical structure of the BCP was confirmed by H-1-NMR spectroscopy, Fourier-transform infrared spectroscopy, and gel permeation chromatographic analysis. Results from differential scanning calorimetry, polarized light microscopy, one-dimensional and two-dimensional wide-angle X-ray diffraction, and transmission electron microscopy techniques demonstrate that the triarm star-shaped rod-rod BCP self-assembles into a hexagon-in-lamella morphology, with the PMPCS block in the columnar nematic phase and the PBLG block in the hexagonal columnar arrangement packed in bilayers due to the rigid nature of the two blocks and the covalent connections in the star-shaped BCP.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000351512000006&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); 7; 5; 709-720; 33
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/150359]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Zhou, Feng,Zhou, Qing-han,Tian, Hai-jian,et al. Synthesis and Self-assembly of a Triarm Star-shaped Rod-Rod Block Copolymer[J]. 高分子科学英文版,2015.
APA	Zhou, Feng.,Zhou, Qing-han.,Tian, Hai-jian.,Li, Chang-sheng.,Zhang, Yu-dong.,...&Shen, Zhi-hao.(2015).Synthesis and Self-assembly of a Triarm Star-shaped Rod-Rod Block Copolymer.高分子科学英文版.
MLA	Zhou, Feng,et al."Synthesis and Self-assembly of a Triarm Star-shaped Rod-Rod Block Copolymer".高分子科学英文版 (2015).