Dicarboxylic acid promoted immortal copolymerization for controllable synthesis of low-molecular weight oligo(carbonate-ether) diols with tunable carbonate unit content

	Dicarboxylic acid promoted immortal copolymerization for controllable synthesis of low-molecular weight oligo(carbonate-ether) diols with tunable carbonate unit content
	Gao YG ; Gu L ; Qin YS ; Wang XH ; Wang FS
刊名	journal of polymer science part a-polymer chemistry
	2012
卷号	50 期号:24 页码:5177-5184
关键词	METAL-CYANIDE COMPLEX CO2/PROPYLENE OXIDE COPOLYMERIZATION PROPYLENE-OXIDE CYCLOHEXENE OXIDE ALTERNATING COPOLYMERIZATION POLY(PROPYLENE CARBONATE) POLYCARBONATE SYNTHESIS ALUMINUM PORPHYRIN HIGHLY EFFICIENT DIOXIDE
ISSN号	0887-624x
通讯作者	wang xh
中文摘要	low-molecular weight oligo(carbonate-ether) diols are important raw materials for polyurethane formation, which with tunable carbonate unit content (cu) may endow new thermal and mechanical performances to polyurethane. herein, facile synthesis of oligo(carbonate-ether) diols with number average molecular weight (mn) below 2000 g mol-1 and cu tunable between 40% and 75% are realized in high activity by immortal copolymerization of co2/propylene oxide (po) using zinc-cobalt double metal cyanide complex (zn-co-dmcc) in the presence of sebacic acid (sa). mn of the oligomer is in good linear relationship to the mole ratio of po and sa (po/sa) and hence can be precisely controlled by adjusting po/sa. besides, the molecular weight distribution is quite narrow due to the rapid reversible chain transfer in the immortal copolymerization. high pressure and low temperature are favorable for raising cu. in all the reactions, the weight fraction of propylene carbonate (wpc) can even be controlled as low as 2.0 wt %, and the catalytic activity of zn-co-dmcc is above 1.0 kgg-1 cat. (c) 2012 wiley periodicals, inc. j polym sci part a: polym chem, 2012
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000311106400021
公开日期	2013-03-17
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/47790]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Gao YG,Gu L,Qin YS,et al. Dicarboxylic acid promoted immortal copolymerization for controllable synthesis of low-molecular weight oligo(carbonate-ether) diols with tunable carbonate unit content[J]. journal of polymer science part a-polymer chemistry,2012,50(24):5177-5184.
APA	Gao YG,Gu L,Qin YS,Wang XH,&Wang FS.(2012).Dicarboxylic acid promoted immortal copolymerization for controllable synthesis of low-molecular weight oligo(carbonate-ether) diols with tunable carbonate unit content.journal of polymer science part a-polymer chemistry,50(24),5177-5184.
MLA	Gao YG,et al."Dicarboxylic acid promoted immortal copolymerization for controllable synthesis of low-molecular weight oligo(carbonate-ether) diols with tunable carbonate unit content".journal of polymer science part a-polymer chemistry 50.24(2012):5177-5184.