Zinc-Based Catalyst for the Ring-Opening Polymerization of Cyclic Esters

doi:10.1002/app.33956

CORC > 化学研究所 > 中国科学院化学研究所

	Zinc-Based Catalyst for the Ring-Opening Polymerization of Cyclic Esters
	Yuan, Yuping; Jing, Xiabin; Xiao, Haihua; Chen, Xuesi; Huang, Yubin
刊名	JOURNAL OF APPLIED POLYMER SCIENCE
	2011-08-15
卷号	121 期号:4 页码:2378-2385
关键词	Catalysts Polyesters Ring-opening Polymerization
ISSN号	0021-8995
DOI	10.1002/app.33956
英文摘要	A zinc-based catalyst zinc bis[bis(trimethyl-silyl) amide] was used for the polymerization of cyclic esters including L-lactide (L-LA) and 2-methyl-2-carboxyl-propylene carbonate (MBC). The polymerization of L-lactide in THF could be carried out successfully under mild conditions in very short time by using the zinc catalyst and alcohols as the initiators. Kinetic study in solution polymerization prooved the polymerization has high monomer conversion degree close to 100% and the molecular weight of the resulting polyester has linear increase with the increase of [M](0) /[I] (molar ratio of monomer to initiator). Sequential polymerization of L-LA and MBC in THF also showed high MBC conversion of 94% with a narrow molecualr weight maintained, indicating a living nature of this polymerization. The zinc catalyst system has also been used for the L-LA bulk polymerization with a high monomer conversion. (13)C NMR indicated the polymer possesses high regioregularity and the minor regioirregular component was owing to the D-LA in the monomer inserted into the polymer mainchain during the transesterifcation. Interaction between monomer and zinc catalyst has been found to be a key factor to sustain a homogenous solution during the initiating procedure. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 121: 2378-2385, 2011
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000291438200061
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/73623]
专题	中国科学院化学研究所
通讯作者	Huang, Yubin
作者单位	Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
推荐引用方式 GB/T 7714	Yuan, Yuping,Jing, Xiabin,Xiao, Haihua,et al. Zinc-Based Catalyst for the Ring-Opening Polymerization of Cyclic Esters[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2011,121(4):2378-2385.
APA	Yuan, Yuping,Jing, Xiabin,Xiao, Haihua,Chen, Xuesi,&Huang, Yubin.(2011).Zinc-Based Catalyst for the Ring-Opening Polymerization of Cyclic Esters.JOURNAL OF APPLIED POLYMER SCIENCE,121(4),2378-2385.
MLA	Yuan, Yuping,et al."Zinc-Based Catalyst for the Ring-Opening Polymerization of Cyclic Esters".JOURNAL OF APPLIED POLYMER SCIENCE 121.4(2011):2378-2385.