Hierarchically Ordered ABA Triblock Copolymer with Large Difference in Glass Transition Temperatures of the Two Blocks

doi:10.1002/pola.27175

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	Hierarchically Ordered ABA Triblock Copolymer with Large Difference in Glass Transition Temperatures of the Two Blocks
	Li, Chang-Feng 1,2; Zhang, Qi-Kai 2; Tian, Hai-Jian 2; Chai, Chun-Peng 1; Gao, Long-Cheng 3; Shen, Zhihao 2; Fan, Xing-He 2; Luo, Yun-Jun 1
刊名	JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
	2014-06-15
卷号	52 期号:12 页码:1737-1744
关键词	Hierarchical Structure Lamellar Liquid-crystalline Polymers Phase Separation Triblock Polymer
ISSN号	0887-624X
DOI	10.1002/pola.27175
英文摘要	Rod-coil-rod triblock copolymers, poly[4-(methoxy)-2-vinylbiphenyl-4-methyl ether] -blockpolydimethylsiloxane-block-poly[4-(methoxy)-2-vinylbiphenyl-4-methyl ether] (PMVBP-b-PDMS-b-PMVBP), were synthesized by nitroxide-mediated radical polymerization, and their hierarchically ordered structures were studied. A difunctional TEMPO macroinitiator was first synthesized by the hydrosilylation reaction between hydride-endcapped PDMS and allylic alkoxyamine. The polymerization of the monomer MVBP was triggered by the macroinitiator, resulting in a series of triblock copolymers. The molecular weights and polydispersity indexes were determined by gel permeation chromatography. Differential scanning calorimetry results demonstrate that the triblock copolymers exhibit two glass transition temperatures (-120 degrees C and 160 degrees C) that are markedly different. As revealed by small-angle X-ray scattering and transmission electron microscopy experiments, the triblock copolymers self-assemble into hierarchical structures with the liquid crystalline phase of PMVBP in the lamellar structures. (c) 2014 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2014, 52, 1737-1744
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000335371100013
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/52827]
专题	中国科学院化学研究所
通讯作者	Fan, Xing-He
作者单位	1.Beijing Inst Technol, Sch Mat Sci & Engn, Beijing 100081, Peoples R China 2.Peking Univ, Coll Chem & Mol Engn, Key Lab Polymer Chem & Phys, Beijing Natl Lab Mol Sci,Minist Educ, Beijing 100871, Peoples R China 3.Beihang Univ, Sch Chem & Environm, Key Lab Bioinspired Smart Interfacial Sci & Techn, Minist Educ, Beijing 100191, Peoples R China
推荐引用方式 GB/T 7714	Li, Chang-Feng,Zhang, Qi-Kai,Tian, Hai-Jian,et al. Hierarchically Ordered ABA Triblock Copolymer with Large Difference in Glass Transition Temperatures of the Two Blocks[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,2014,52(12):1737-1744.
APA	Li, Chang-Feng.,Zhang, Qi-Kai.,Tian, Hai-Jian.,Chai, Chun-Peng.,Gao, Long-Cheng.,...&Luo, Yun-Jun.(2014).Hierarchically Ordered ABA Triblock Copolymer with Large Difference in Glass Transition Temperatures of the Two Blocks.JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,52(12),1737-1744.
MLA	Li, Chang-Feng,et al."Hierarchically Ordered ABA Triblock Copolymer with Large Difference in Glass Transition Temperatures of the Two Blocks".JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 52.12(2014):1737-1744.