English  |  正體中文  |  简体中文  |  Items with full text/Total items : 66984/66984 (100%)
Visitors : 23165034      Online Users : 457
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/987654321/26438


    Title: Sulfobetaine-grafted poly(vinylidene fluoride) ultrafiltration membranes exhibit excellent antifouling property
    Authors: Chiang,YC;Chang,Y;Higuchi,A;Chen,WY;Ruaan,RC
    Contributors: 化學工程與材料工程學系
    Keywords: SELF-ASSEMBLED MONOLAYERS;POLY(ETHYLENE GLYCOL);COPOLYMER MEMBRANES;PROTEIN ADSORPTION;SENSITIVE MEMBRANES;PVDF MEMBRANES;SURFACE;POLYMERS;IMMOBILIZATION;POLYMERIZATION
    Date: 2009
    Issue Date: 2010-06-29 17:28:04 (UTC+8)
    Publisher: 中央大學
    Abstract: The zwitterionic sulfobetaine methacrylate(SBMA) was grafted on the surface of poly(vinylidene fluoride) (PVDF) membrane via ozone surface activation and surface-initiated atom transfer radical polymerization (ATRP). The steady adsorption of bovine serum albumin (BSA) and gamma-globulin were investigated to test the antifouling character after SBMA grafting. Hardly any albumin adsorption was observed, as the grafting density exceeded 0.4 mg/cm(2) of polySBMA. The adsorption of gamma-globulin was also greatly reduced. To investigate whether the method, ozone surface activation along with ATRP, was able to graft SBMA inside the pores of the membrane, cyclic filtration tests were performed and the ultrafiltration (UF) membrane of wider pore size was used. The cyclic filtration test for BSA yielded an extremely low irreversible membrane fouling ratio (R-ir) of 13% in the first cycle, and apparently no irreversible fouling was observed in the second cycle. A more stringent test was carried out by passing the gamma-globulin solution. It was found that the virgin PVDF membrane was continuously fouled by gamma-globulin after three cyclic operations, while the polySBMA-modified membrane had the R-ir value as low as 4.7% in the third cycle. The results indicated that the surface modification via ozone surface activation and ATRP could actually penetrate into the pores of a UF membrane. The polySBMA-grafted PVDF membrane was observed to effectively resist the plasma protein adsorption, and exhibited an extremely low biofouling characteristic during filtration. (C) 2009 Elsevier B.V. All rights reserved.
    Relation: JOURNAL OF MEMBRANE SCIENCE
    Appears in Collections:[化學工程與材料工程研究所] 期刊論文

    Files in This Item:

    File Description SizeFormat
    index.html0KbHTML357View/Open


    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