English  |  正體中文  |  简体中文  |  Items with full text/Total items : 60917/93528 (65%)
Visitors : 1559644      Online Users : 19
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: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/94001

    Title: 以非異氰酸酯法合成新型親水性聚胺酯
    Other Titles: New hydrophilic PU resin via a non-isocyanate process
    Authors: 黃景忠;Hwang, Jing-Zhong
    Contributors: 淡江大學化學學系博士班
    陳幹男;Chen, Kan-Nan
    Keywords: 非異氰酸酯法;環碳酸酯;聚胺酯;親水;麥可加成;紫外光架橋;Non-isocyanate;Carbonate;polyurethane;hydrophilic;Michael-addition;UV-Curing
    Date: 2013
    Issue Date: 2014-01-23 13:46:36 (UTC+8)
    Abstract:   在本研究論文中嘗試使用一種有別於傳統的非異氰酸鹽之合成法來合成聚胺酯化合物(PU)。在常壓的實驗條件下先使用環氧樹脂與二氧化碳進行加成反應合成出環碳酸酯,再使用不同的長鏈雙胺化合物(Jeffamine)與環碳酸酯化合物進行開環反應,使之經由開環加成聚合反應而形成聚胺酯化合物,並對其討論聚合反應後的性質變化。並且藉由麥可加成反應將壓克力官能基導入聚胺酯主鏈段的末端上,即可以得到一新型且紫外光可架橋之非異氰酸鹽合成法的聚胺酯寡聚物(UV-PU)。而在本實驗流程中所使用的溶劑為環保型溶劑,如乳酸乙酯,且同時使用一具有可回收特性的催化劑,如溴化鋰等。故本實驗在合成聚胺酯的過程可以被歸納為符合節能減碳與對環境友善的綠色製程。
      In this research, a new UV-curable hydrophilic PU resin was obtained through a green, nonisocyanate, three-reaction process: (1) cyclic carbonate (BCC or PPG-DCE) compounds are prepared by inserting carbon dioxide into epoxy resins (DGEBA or PPG-DGE) at atmospheric pressure; (2) amino-terminated hydrophilic PUs (NH2-PU) prepolymer are obtained through the ring-opening polymerization of BCC and PPG-DCE utilizing di-functional or tri-functional amino hydrophilic (polyether) compounds such as Jeffamine D-2000 or T-3000; (3) UV-curable acrylate-PU oligomer (UV-PU) are obtained as adducts from the Michael addition of NH2-PU to multi-acrylate-terminated compounds, 3-acryloyloxy-2-hydroxypropyl methacrylate (AHM). We used as ethyl lactate (EL) as a green solvent and a recyclable catalyst as lithium bromide. This is an energy saving and environmental friendly green process toward PU formation.
      In this research, UV-PU films are compared to the difference of their properties. Finally all the data of each resulted polyurethane resins with different formulations are evaluated and discussed in this report.
    Appears in Collections:[Graduate Institute & Department of Chemistry] Thesis

    Files in This Item:

    File SizeFormat

    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