Synthesis and Characterization of a New Aziridinyl Curing Agent for Anionic Aqueous-Based Polyurethane

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Title:	Synthesis and Characterization of a New Aziridinyl Curing Agent for Anionic Aqueous-Based Polyurethane
Authors:	王世杰;陳博正;陳幹男
Contributors:	淡江大學化學學系
Keywords:	聚氨基甲酸酯;陽離子水溶液;次亞乙胺架橋;硬化劑;Polyurethane;Anionic Aqueous Solution;Aziridinyl Curing;Curing Agent
Date:	2003-01
Issue Date:	2014-02-09 07:39:16 (UTC+8)
Abstract:	A mono-aziridinyl group containing curing agent is synthesized from the addition reaction of aziridine with isophorone diisocyanate (IPDI) in equal molar ratio. It is resulting in a compound consists of isocyanate and aziridinyl groups. This newly prepared compound is purified and characterized by the spectrophotometric methods. This new compound is introduced into an aqueous-based amino- terminated PU dispersion and resulting a self-curable aqueous-based PU dispersion. The isocyanate and the aziridinyl groups of the compound react with the terminal amino and carboxylic groups of aqueous-based polyurethane within PU micelles and on the drying process, respectively. This compound owns two separated reactive functional groups serves as a new curing agent for the carboxylic group containing aqueous-based polyurethane. The performance properties of this cured PU with this new curing agent are investigated.
Relation:	第二十六屆高分子研討會論文集，4頁
Appears in Collections:	[Graduate Institute & Department of Chemistry] Proceeding

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