English  |  正體中文  |  简体中文  |  Items with full text/Total items : 51258/86283 (59%)
Visitors : 8028815      Online Users : 144
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/987654321/85563


    Title: Poly(ethylene glycol-b-styrene)團聯共聚 物之分散聚合
    Authors: 李永正;許文彰;胡朝景
    Contributors: 淡江大學化學學系
    Keywords: 團聯共聚物;起始劑;粒徑分布;乙二醇;苯乙烯;Block Copolymer;Initiator;Particle Distribution;Ethylene Glycol;Styrene
    Date: 1991-06
    Issue Date: 2013-04-09 11:42:20 (UTC+8)
    Publisher: 新竹市 : 清華大學化學工程研究所
    Abstract: 本研究計畫以Macroazo-initiator法以自由基聚 合反式合成親水疏水性鏈節之兩親性 (amphiphilic)團聯共聚物(block copolymer)。合成方法 乃先以具OH末端基之親水性-PEG與 Azobiscyano-valeric acid行縮合反應合成出親水性之 Macroazo-initiator,接著加入第二種疏水性(親水性) 單體行共聚合反應而得。藉由共聚合反應時所 使用溶劑極性之選擇,使共聚合過程中生成本身 具分散安定效果的團聯共聚物。在不加入任何 乳化劑及安定劑下可直接合成安定性之block copolymer micelle。研究中將就macroazo-initiator之PEG及 polysiloxane分子量,共聚合時第二種單體之濃度,反 應溫度、時間及溶劑等因素對團聯共聚物之 micelle粒子大小,粒徑分布等形態及反覆乾燥-溶 解分散安定性之影響等,逐一探討。
    The amphiphilic block copolymer containing hydrophobic and hydrophilic polymer chains were synthesized by using macroazoinitiator method. The hydroxyl group-terminated hydrophilic polyethylene glycol (PEG) were incorporated with azo-unit in the main chain through condensation reaction with azobiscyanovaleric acid. The macroazo prepolymers were further copolymerized with addition of styrene monomer , resulting in an amphiphilic block copolymer. The particle size and distribution of micelles were studied by varying reaction conditions of macroazoinitiator and comonomers with different molecular weights and concentration.
    Relation: 第十四屆高分子研討會論文專輯(第七卷第一冊)=Proceedings of the 14th ROC Polymer Symposium 1991 (I),頁9-12
    Appears in Collections:[化學學系暨研究所] 會議論文

    Files in This Item:

    File Description SizeFormat
    index.html0KbHTML82View/Open
    Poly(ethylene glycol-b-styrene)團聯共聚 物之分散聚合_英文摘要.docx摘要18KbMicrosoft Word51View/Open
    Poly(ethylene glycol-b-styrene)團聯共聚 物之分散聚合_中文摘要.docx摘要16KbMicrosoft Word129View/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