Toughening of epoxy resins by hydroxyl-terminated polyether with Bu2SnO-Bu3PO4 condensate as catalyst

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	Toughening of epoxy resins by hydroxyl-terminated polyether with Bu2SnO-Bu3PO4 condensate as catalyst
	Wu, Q; Xu, JJ; Ma, Y; Yu, YZ
刊名	ACTA POLYMERICA SINICA
	2001-02-01
期号	1 页码:68-72
关键词	Epoxy Resin Poly(Tetramethylene Glycols) Bu2sno-bu3po4 Condensate Toughness
ISSN号	1000-3304
英文摘要	The hydroxyl-terminated polyethers, though industrially widely available,have not been used as tougheners for amine-cured epoxy resins. The Bu2SnO-Bu3PO4 condensate Sn-P6700 was used to catalyze the addition of hydroxyl group to epoxy group. In the presence of this catalyst. hydroxyl-terminated poly (tetramethylene glycols) (PTMG) were used directly as the toughener for the epoxy resin with 4,4'-diamino diphenyl sulfone as the curing agent. PTMG was first reacted with the epoxy resin to form block copolymers. Micro-phase separation took place upon curing. The particle size of the dispersed phase was in the range of 0.4 to 1.4 mum when the molecular weight was in the range of 700 to 2000,which was favorable to the toughening. When ca. 5 phr of PTMG was used as modifier, the toughness of the cured resin was improved greatly with a slight lowering of T-g and modulus.
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000167049600014
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/77431]
专题	中国科学院化学研究所
通讯作者	Wu, Q
作者单位	Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Wu, Q,Xu, JJ,Ma, Y,et al. Toughening of epoxy resins by hydroxyl-terminated polyether with Bu2SnO-Bu3PO4 condensate as catalyst[J]. ACTA POLYMERICA SINICA,2001(1):68-72.
APA	Wu, Q,Xu, JJ,Ma, Y,&Yu, YZ.(2001).Toughening of epoxy resins by hydroxyl-terminated polyether with Bu2SnO-Bu3PO4 condensate as catalyst.ACTA POLYMERICA SINICA(1),68-72.
MLA	Wu, Q,et al."Toughening of epoxy resins by hydroxyl-terminated polyether with Bu2SnO-Bu3PO4 condensate as catalyst".ACTA POLYMERICA SINICA .1(2001):68-72.