Ring-opening polymerization of epsilon-caprolactone and L-lactide using organic amino calcium catalyst

doi:10.1016/S0032-3861(03)00118-6

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	Ring-opening polymerization of epsilon-caprolactone and L-lactide using organic amino calcium catalyst
	Piao, LH; Deng, MX; Chen, XS; Jiang, LS; Jing, XB
刊名	POLYMER
	2003-04-01
卷号	44 期号:8 页码:2331-2336
关键词	Calcium Catalyst Poly (Epsilon-caprolactone) Poly (L-lactide)
ISSN号	0032-3861
DOI	10.1016/S0032-3861(03)00118-6
英文摘要	Poly (6-caprolactone) (PCL) and poly (L-lactide) (PLA) were prepared by ring-opening Polymerization catalyzed by organic amino calcium catalysts (Ca/PO and Ca/EO) which were prepared by reacting calcium ammoniate Ca(NH3)(6) with propylene oxide and ethylene oxide, respectively. The catalysts exhibited high activity and the ring-opening polymerization behaved a quasi-living characteristic. Based on the Fr-IR spectra and the calcium contents of the catalysts, and based on the H-1 NMR end-group analysis of the low molecular weight PCL prepared using catalysts Ca/PO and Ca/EO, it was proposed that the catalysts have the structure of NH2-Ca-O-CH(CH3)(2) and NH2-CaO-CH2CH3 for Ca/PO and Ca/EO, respectively. The ring-opening polymerization of CL and LA follows a coordination-insertion mechanism and the active site is the Ca-O bond. (C) 2003 Elsevier Science Ltd. All fights reserved.
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000181914600019
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/81331]
专题	中国科学院化学研究所
通讯作者	Jing, XB
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	Piao, LH,Deng, MX,Chen, XS,et al. Ring-opening polymerization of epsilon-caprolactone and L-lactide using organic amino calcium catalyst[J]. POLYMER,2003,44(8):2331-2336.
APA	Piao, LH,Deng, MX,Chen, XS,Jiang, LS,&Jing, XB.(2003).Ring-opening polymerization of epsilon-caprolactone and L-lactide using organic amino calcium catalyst.POLYMER,44(8),2331-2336.
MLA	Piao, LH,et al."Ring-opening polymerization of epsilon-caprolactone and L-lactide using organic amino calcium catalyst".POLYMER 44.8(2003):2331-2336.