Self-accelerating click reaction for preparing cyclic polymers from unconjugated vinyl monomers

doi:10.1016/j.polymer.2017.12.071

CORC > 化学研究所 > 中国科学院化学研究所

	Self-accelerating click reaction for preparing cyclic polymers from unconjugated vinyl monomers
	Li, Zi 1,3; Qu, Lin 1,2; Zhu, Wen 1; Liu, Jian'an 1; Chen, Ji-Qiang 1; Sun, Peng 1,3; Wu, Ying 2; Liu, Zhengping 2; Zhang, Ke 1,3
刊名	POLYMER
	2018-02-14
卷号	137 页码:54-62
关键词	Bimolecular Homodifunctional Ring-closure Method Cyclic Polymer From Unconjugated Vinyl Monomer Self-accelerating Double Strain-promoted Azide-alkyne Click Reaction
ISSN号	0032-3861
DOI	10.1016/j.polymer.2017.12.071
英文摘要	An efficient metal-free bimolecular homodifunctional ring-closure method was developed specifically for preparing well-defined cyclic polymers from unconjugated vinyl monomers. In this approach, welldefined homodifunctional linear polymers with azide terminals were prepared by using the reversible addition chain transfer polymerization/ macromolecular design by interchange of xanthates (RAFT/MADIX) to polymerize unconjugated vinyl monomers in the presence of a diazide xanthate chain transfer agent. The self-accelerating double strain-promoted azide-alkyne cycloaddition (DSPAAC) reaction was then applied to ring-close the linear polymer precursors with sym-dibenzo-1,5-cyclooctadiene-3,7-diyne (DBA) as small linkers, leading to the formation of corresponding cyclic polymers. By virtue of the selfaccelerating property of DSPAAC ring-closing reaction, this novel method smartly eliminated the requirement of equimolar amounts of the telechelic polymers and small linkers in the traditional bimolecular ring-closure methods for pure cyclic polymers. More importantly, the usage of excess DBA small linkers could significantly enhance the preparation efficiency of cyclic polymers. Moreover, the cyclic polymers resulted from this novel method could be conveniently cleaved back to linear polymers by a mild aminolysis of the S-C(S) bond within the cyclic polymer backbone. (c) 2018 Elsevier Ltd. All rights reserved.
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000425603800006
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/45587]
专题	中国科学院化学研究所
通讯作者	Wu, Ying; Zhang, Ke
作者单位	1.Chinese Acad Sci, CAS Res Educ Ctr Excellence Mol Sci, Inst Chem, State Key Lab Polymer Phys & Chem, Beijing 100190, Peoples R China 2.Beijing Normal Univ, Coll Chem, Inst Polymer Chem & Phys, Beijing Key Lab Energy Convers & Storage Mat, Beijing 100875, Peoples R China 3.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, Zi,Qu, Lin,Zhu, Wen,et al. Self-accelerating click reaction for preparing cyclic polymers from unconjugated vinyl monomers[J]. POLYMER,2018,137:54-62.
APA	Li, Zi.,Qu, Lin.,Zhu, Wen.,Liu, Jian'an.,Chen, Ji-Qiang.,...&Zhang, Ke.(2018).Self-accelerating click reaction for preparing cyclic polymers from unconjugated vinyl monomers.POLYMER,137,54-62.
MLA	Li, Zi,et al."Self-accelerating click reaction for preparing cyclic polymers from unconjugated vinyl monomers".POLYMER 137(2018):54-62.