Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/41202
標題: Phosphorus-containing epoxy curing agents via imine linkage
作者: Lin, C.H.
林慶炫
Hwang, T.Y.
Taso, Y.R.
Lin, T.L.
關鍵字: diastereomers
epoxy curing agents
imines
phosphorus
thermosets
resins
retardancy
polymers
novolac
期刊/報告no:: Macromolecular Chemistry and Physics, Volume 208, Issue 24, Page(s) 2628-2641.
摘要: Two new phenol-type curing agents, (3) and (4), were synthesized by the condensation of 4 (or 2)-hydroxybenzaldehyde and 4-aminophenol, followed by the addition of DOPO to the resulting imine linkage. Two reaction mechanisms, conjugate-addition and carbocation mechanisms, were proposed. The fact that the ratio of the configuration of the two diastereomers depends on the reaction solvent indicates that the carbocation mechanism is the more reasonable one. (3) and (4) served as curing agents for epoxy resins, and the resulting epoxy thermosets exhibited good flame retardancy, and moderate T-g and thermal stability. The nitrogen-phosphorus synergistic effect explains the high flame retardancy.
URI: http://hdl.handle.net/11455/41202
ISSN: 1022-1352
文章連結: http://dx.doi.org/10.1002/macp.200700253
Appears in Collections:化學工程學系所

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