Bulk self-assembly and ionic conductivity of a block copolymer   containing an azobenzene-based liquid crystalline polymer and a   poly(ionic liquid)

doi:10.1039/c6py02187e

CORC > 北京大学 > 化学与分子工程学院

	Bulk self-assembly and ionic conductivity of a block copolymer containing an azobenzene-based liquid crystalline polymer and a poly(ionic liquid)
	Zhang, Yu-Dong ; Ping, Jing ; Wu, Qi-Wei ; Pan, Hong-Bing ; Fan, Xing-He ; Shen, Zhihao ; Zhou, Qi-Feng
刊名	POLYMER CHEMISTRY
	2017
关键词	LITHIUM-METAL BATTERIES SENSITIZED SOLAR-CELLS DIBLOCK COPOLYMER ORDER-ORDER TRIBLOCK COPOLYMER PHASE ELECTROLYTES TRANSITIONS MORPHOLOGY FILMS
DOI	10.1039/c6py02187e
英文摘要	By combining nitroxide-mediated block copolymerization with post functionalization and ion exchange, a series of block copolymers (BCPs) containing an azobenzene-based side-chain liquid crystalline (LC) polymer and an imidazolium-containing poly(ionic liquid) (PIL) were synthesized. The LC block of the BCPs studied herein is poly(4-[12-(4-butyl-4'-oxy-azobenzene) dodecyl] oxycarbonylstyrene) (PAzo), while the PIL block is poly(4-vinylbenzylhexylimidazoliumbis(trifluoromethanesulfonyl) imide) (PIL(TFSI)). As far as we know, this is the first series of BCPs having both PIL and LC polymer blocks. In this series of BCPs, the PIL(TFSI) blocks are totally ionized, while the polymer compositions are varied. When the weight fraction of PIL(TFSI) is 29.7%, the BCP self-assembles into a hexagonally packed cylindrical (HEX) structure. For the BCP with 56.5 wt% PIL(TFSI), it self-assembles into a lamellar (LAM) structure when the PAzo block is LC; and it changes into a HEX structure when the PAzo block enters into the isotropic state, which is attributed to the more flexible interface between PIL(TFSI) and PAzo at temperatures above the clearing temperature of PAzo. When the weight fraction of PIL(TFSI) is 65.3%, the nanostructure of the BCP remains LAM during heating. The ionic conductivities of the BCP with 65.3 wt% PIL(TFSI) at 40 and 140 degrees C are 4.45 x 10(-5) and 5.81 x 10(-4) S cm(-1), respectively, which indicates that the BCP can be used as a solid polymer electrolyte.; National Natural Science Foundation of China [51473005]; SCI(E); ARTICLE; 10; 1689-1698; 8
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/476300]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Zhang, Yu-Dong,Ping, Jing,Wu, Qi-Wei,et al. Bulk self-assembly and ionic conductivity of a block copolymer containing an azobenzene-based liquid crystalline polymer and a poly(ionic liquid)[J]. POLYMER CHEMISTRY,2017.
APA	Zhang, Yu-Dong.,Ping, Jing.,Wu, Qi-Wei.,Pan, Hong-Bing.,Fan, Xing-He.,...&Zhou, Qi-Feng.(2017).Bulk self-assembly and ionic conductivity of a block copolymer containing an azobenzene-based liquid crystalline polymer and a poly(ionic liquid).POLYMER CHEMISTRY.
MLA	Zhang, Yu-Dong,et al."Bulk self-assembly and ionic conductivity of a block copolymer containing an azobenzene-based liquid crystalline polymer and a poly(ionic liquid)".POLYMER CHEMISTRY (2017).