English  |  正體中文  |  简体中文  |  Items with full text/Total items : 52068/87197 (60%)
Visitors : 8905717      Online Users : 301
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version
    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/82983

    Title: A new tri-functional azetidine compound for self-curing aqueous-based PU system
    Authors: Wang, Shih-Chieh;Chen, Po-Chen;Hwang, Jing-Zhong;Huang, Chi-Yuan;Yeh, Jen-Taut;Chen, Kan-Nan
    Contributors: 淡江大學化學學系
    Keywords: self-curing;azetidine;ring-opening;aqueous-based PU;Michael addition
    Date: 2012-04
    Issue Date: 2013-03-12 23:03:20 (UTC+8)
    Publisher: Hoboken: John Wiley & Sons, Inc.
    Abstract: A mono-azetidine compound had been demonstrating a ring opening reaction with carboxylic acid (e.g., trimethylacetic acid, TMAA) and that resulted in an amino ester bond formation at ambient temperature. A triazetidine compound (trimethylolpropane tris(1-azetidinyl)propionate, TMPTA-AZT) was obtained via Michael addition of azetidine (AZT) to trimethylolpropane triacrylate (TMPTA). The carboxylic groups of anionic aqueous-based polyurethanes (PU) served as internal emulsifier, which stabilized PU dispersion and also served as PU curing sites. The triazetidine compound (TMPTA-AZT) was introduced into anionic aqueous-based PU dispersion as a new latent curing agent and that mixture became a single-component self-curable aqueous PU system. A crosslinked PU film was obtained from this PU system on drying at ambient temperature. The final polymer performance properties demonstrated the crosslinking behaviors of this new curing agent, TMPTA-AZT, with carboxylic ion-containing aqueous-based PU resins.
    Relation: Journal of Applied Polymer Science 124(1), pp.175–181
    DOI: 10.1002/app.35091
    Appears in Collections:[化學學系暨研究所] 期刊論文

    Files in This Item:

    File Description SizeFormat
    60.pdfA New Tri-functional Azetidine Compound for Self-curing Aqueous-based PU System500KbAdobe PDF285View/Open

    All items in 機構典藏 are protected by copyright, with all rights reserved.

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - Feedback