Block Copolymers of Poly(ethylene oxide) and Poly(vinyl alcohol)   Synthesized by the RAFT Methodology

doi:10.1002/pola.23288

CORC > 北京大学 > 化学与分子工程学院

	Block Copolymers of Poly(ethylene oxide) and Poly(vinyl alcohol) Synthesized by the RAFT Methodology
	Tong, Yin-Yin ; Dong, Yong-Quan ; Du, Fu-Sheng ; Li, Zi-Chen
刊名	journal of polymer science part a polymer chemistry
	2009
关键词	block copolymers poly(ethylene oxide) poly(vinyl alcohol) reversible addition-fragmentation chain transfer water-soluble polymers MEDIATED RADICAL POLYMERIZATION CHAIN TRANSFER POLYMERIZATION VINYL-ACETATE STAR POLYMERS MADIX/RAFT POLYMERIZATION AQUEOUS-SOLUTIONS COMBINATION XANTHATES ACRYLATE ATRP
DOI	10.1002/pola.23288
英文摘要	A methodology for the synthesis of well-defined poly(ethylene oxide)block-poly(vinyl alcohol) (PEO-b-PVA) and PVA-b-PEO-b-PVA polymers was reported. Novel xanthate end-functionalized PEOs were synthesized by a series of end-group transformations. They were then used to mediate the reversible addition-fragmentation chain transfer polymerization of vinyl acetate to obtain well-defined poly(ethylene oxide)-b-poly(vinyl acetate) (PEO-b-PVAc) and PVAc-b-PEO-b-PVAc. When these block copolymers were directly hydrolyzed in methanol solution of sodium hydroxide, polymers with brown color were obtained, which was due to the formation of conjugated unsaturated aldehyde structures. To circumvent these side reactions, the xanthate groups were removed by adding a primary amine before hydrolysis and the products thus obtained were white powders. The polymers were characterized by gel permeation chromatography, H-1 NMR spectroscopy and FT-IR. (C) 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 1901-1910, 2009; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000264561400015&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Polymer Science; SCI(E); 39; ARTICLE; 7; 1901-1910; 47
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/246389]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Tong, Yin-Yin,Dong, Yong-Quan,Du, Fu-Sheng,et al. Block Copolymers of Poly(ethylene oxide) and Poly(vinyl alcohol) Synthesized by the RAFT Methodology[J]. journal of polymer science part a polymer chemistry,2009.
APA	Tong, Yin-Yin,Dong, Yong-Quan,Du, Fu-Sheng,&Li, Zi-Chen.(2009).Block Copolymers of Poly(ethylene oxide) and Poly(vinyl alcohol) Synthesized by the RAFT Methodology.journal of polymer science part a polymer chemistry.
MLA	Tong, Yin-Yin,et al."Block Copolymers of Poly(ethylene oxide) and Poly(vinyl alcohol) Synthesized by the RAFT Methodology".journal of polymer science part a polymer chemistry (2009).