English  |  正體中文  |  简体中文  |  Items with full text/Total items : 69561/69561 (100%)
Visitors : 23063418      Online Users : 632
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU 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://ir.lib.ncu.edu.tw/handle/987654321/49852

    Title: Effect of UV intensity on structure, water sorption, and transport properties of crosslinked N-vinyl-2-pyrrolidone/N,N '-methylenebisacrylamide films
    Authors: Wu,YH;Liu,YL;Chang,Y;Higuchi,A;Freeman,BD
    Contributors: 化學工程與材料工程學系
    Date: 2010
    Issue Date: 2012-03-27 16:24:41 (UTC+8)
    Publisher: 國立中央大學
    Abstract: UV photopolymerization was used to prepare films from N-vinyl-2-pyrrolidone (NVP) crosslinked with N,N'-methylenebisacrylamide (MBAA). These samples were crosslinked in the presence of water. Although the initial mixtures of water, NVP and MBAA were optically transparent, the final films were white, indicating that phase separation occurred during photopolymerization. The influence of UV intensity on the crosslinked NVP film structure was characterized using CryoSEM for cross-sectional imaging and Bio-AFM for imaging surface morphology. The influence of UV intensity on transport properties was characterized using dead-end filtration to measure water permeability and molecular weight cutoff (MWCO). Samples polymerized at high UV intensity had 2.7 times higher water permeability than those polymerized at low UV intensity, even though the structure, as probed via SEM and AFM, shows little to no significant changes. Higher UV intensity also led to somewhat higher MWCO values, indicating a tradeoff between water permeability and solute sieving characteristics. (C) 2009 Elsevier B.V. All rights reserved.
    Appears in Collections:[化學工程與材料工程學系 ] 期刊論文

    Files in This Item:

    File Description SizeFormat

    All items in NCUIR are protected by copyright, with all rights reserved.

    社群 sharing

    ::: Copyright National Central University. | 國立中央大學圖書館版權所有 | 收藏本站 | 設為首頁 | 最佳瀏覽畫面: 1024*768 | 建站日期:8-24-2009 :::
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback  - 隱私權政策聲明