Unusual Chiral Transfer in Radical Copolymerization of Vinyl Monomers Bearing Side-on p-Terphenyl Pendants

doi:10.1002/asia.200900529

CORC > 化学研究所 > 中国科学院化学研究所

	Unusual Chiral Transfer in Radical Copolymerization of Vinyl Monomers Bearing Side-on p-Terphenyl Pendants
	Cui, Jiaxi; Liu, Anhua; Cao, Hongqing; Wan, Xinhua; Zhou, Qifeng
刊名	CHEMISTRY-AN ASIAN JOURNAL
	2010
卷号	5 期号:5 页码:1139-1145
关键词	Chiral Transfer Helical Polymer P-terphenyl Radical Copolymerization Vinyl Monomer
ISSN号	1861-4728
DOI	10.1002/asia.200900529
英文摘要	Radical copolymerization of a chiral monomer, (+)-2,5-bis[4'-((S)-2-methylbutoxy)phenyl]styrene and an achiral monomer, 2,5-bis(4'-hexyloxyphenyl)styrene, is carried out in anisole at 90 degrees C with benzoyl peroxide as the initiator. The resultant optically active helical copolymers show an unusual linear relationship between optical activity and composition, in sharp contrast with Green's "sergeants-and-soldiers" and "majority" rules. Analysis of the polarimetry, circular dichroism, and chain extension results suggest that the weak steric interaction between the propagation helical radical and the incoming monomer drove the copolymer chain to grow in a specific direction. Moreover, the helical macroinitiator is successfully used to induce the helix-sense-selective atom transfer radical polymerization of an achiral analogous monomer to yield optically-active block copolymers, which indicate a convenient way to prepare helical polymers with an excess screw sense from an achiral monomer by means of radical polymerization.
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000277724800015
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/70181]
专题	中国科学院化学研究所
通讯作者	Wan, Xinhua
作者单位	Peking Univ, Beijing Natl Lab Mol Sci, Key Lab Polymer Chem & Phys, Minist Educ,Coll Chem & Mol Engn, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Cui, Jiaxi,Liu, Anhua,Cao, Hongqing,et al. Unusual Chiral Transfer in Radical Copolymerization of Vinyl Monomers Bearing Side-on p-Terphenyl Pendants[J]. CHEMISTRY-AN ASIAN JOURNAL,2010,5(5):1139-1145.
APA	Cui, Jiaxi,Liu, Anhua,Cao, Hongqing,Wan, Xinhua,&Zhou, Qifeng.(2010).Unusual Chiral Transfer in Radical Copolymerization of Vinyl Monomers Bearing Side-on p-Terphenyl Pendants.CHEMISTRY-AN ASIAN JOURNAL,5(5),1139-1145.
MLA	Cui, Jiaxi,et al."Unusual Chiral Transfer in Radical Copolymerization of Vinyl Monomers Bearing Side-on p-Terphenyl Pendants".CHEMISTRY-AN ASIAN JOURNAL 5.5(2010):1139-1145.