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    題名: New self-curable, aqueous-based polyurethane system by an isophorone diisocyanate/uretedione aziridinyl derivative process
    作者: Lai, Jian-zei;Ling, Hao-jan;Yeh, Jen-taut;Chen, Kan-nan
    貢獻者: 淡江大學化學學系
    關鍵詞: polyurethanes;uretedione;aziridine
    日期: 2004-11-05
    上傳時間: 2009-11-04 16:56:04 (UTC+8)
    出版者: John Wiley & Sons
    摘要: Uretedione aziridinyl derivative (UAD) was prepared through the dimerization of isophorone diisocyanate and the addition reaction of aziridine to its isocyanate (NCO) end groups. An NCO-terminated polyurethane (PU) prepolymer was prepared from the addition of isophorone diisocyanate, poly(propylene glycol)s, and dimethylolpropanic acid. A mixture of UAD with the PU prepolymer and its NCO terminal groups were hydrolyzed to form primary amino groups during a water dispersion process. Meanwhile, the uretedione group of UAD reacted with these primary amino groups in the aqueous phase. Then, these aziridine end groups of UAD became part of an aqueous-based PU and served as latent internal curing agents. The self-curable, aqueous-based PU system obtained with this new UAD process is a convenient alternative for improving the performance of aqueous-based PUs.
    關聯: Journal of Applied Polymer Science 94(3), pp.845-859
    DOI: 10.1002/app.20691
    顯示於類別:[化學工程與材料工程學系暨研究所] 期刊論文

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