Odd-even effect in free radical polymerization of optically active   2,5-bis[(4 &apos;-alkoxycarbonyl)-phenyl]styrene

doi:10.1021/ma8000115

CORC > 北京大学 > 化学与分子工程学院

	Odd-even effect in free radical polymerization of optically active 2,5-bis[(4 '-alkoxycarbonyl)-phenyl]styrene
	Zhi, Junge ; Zhu, Zhiguo ; Liu, Anhua ; Cui, Jiaxi ; Wan, Xinhua ; Zhou, Qifeng
刊名	macromolecules
	2008
关键词	AROMATIC SIDE-CHAINS CHIROPTICAL PROPERTIES HELICAL CONFORMATION SYNTHETIC-POLYMERS LIQUID-CRYSTALS CONTAINING POLY(PHENYLACETYLENE)S SELECTIVE POLYMERIZATION PROMESOGENIC MONOMERS HYDROCARBON POLYMERS CHIRAL AMPLIFICATION
DOI	10.1021/ma8000115
英文摘要	The effects of the position and configuration of the stereogenic carbon atom in vinyl monomers on the optical activity of their respective polymers through radical polymerization was investigated. The monomers were prepared in moderate yields by estrification of chiral alcohols, which was preconverted to highly active acyl chloride by reaction with oxalyl chloride in the presence of trace amount of the polymer. The opposite sign of the polymer to its monomer and a large increase in chiral optical power indicate that the optical activity of polymer is not solely attributed to the configurational chirality in the side groups. The circular dichroism (CD) spectrum of the polymer exhibits one positive Cotton effect at the wavelengths less than 223 nm and two negative Cotton bands in the wavelength ranges of 223-279 and 279-343 nm.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000253728100006&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Polymer Science; SCI(E); EI; 46; ARTICLE; 5; 1594-1597; 41
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/151506]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Zhi, Junge,Zhu, Zhiguo,Liu, Anhua,et al. Odd-even effect in free radical polymerization of optically active 2,5-bis[(4 '-alkoxycarbonyl)-phenyl]styrene[J]. macromolecules,2008.
APA	Zhi, Junge,Zhu, Zhiguo,Liu, Anhua,Cui, Jiaxi,Wan, Xinhua,&Zhou, Qifeng.(2008).Odd-even effect in free radical polymerization of optically active 2,5-bis[(4 '-alkoxycarbonyl)-phenyl]styrene.macromolecules.
MLA	Zhi, Junge,et al."Odd-even effect in free radical polymerization of optically active 2,5-bis[(4 '-alkoxycarbonyl)-phenyl]styrene".macromolecules (2008).