淡江大學機構典藏:Item 987654321/100127
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    题名: Effects of cooling temperature and aging treatment on the morphology of nano- and micro-porous poly(ethylene-co-vinyl alcohol) membranes by thermal induced phase separation method
    作者: Chang, Hsu-Hsien;Konstantinos Beltsios;Chen, Yih-Hang;Lin, Dar-Jong;Cheng, Liao-Ping
    贡献者: 淡江大學化學工程與材料工程學系
    关键词: membranes;crystallization;ageing;nanostructured polymers;morphology
    日期: 2013-12-30
    上传时间: 2015-01-28 11:36:10 (UTC+8)
    出版者: Hoboken: John Wiley & Sons, Inc.
    摘要: Poly(ethylene-co-vinyl alcohol) (EVOH 32) / 1,3-propanediol mixtures are processed by thermally induced phase separation for the formation of porous membranes. The crystallization line was determined both by the cloud-point and DSC methods. Two precursor solution compositions, four quench temperatures and various aging times were explored. It is found possible to generate both polymer-crystallization controlled morphologies (for high quenches and/or sufficiently aged dopes), especially globular microporous ones, and novel nano-scale porous morphologies dominated by intra-binodal phase separation (for low quenches and limited or no precursor solution aging). Structural characterization of the membranes was accomplished via application of scanning electron microscopy and wide angle X-ray diffraction.
    關聯: Journal of Applied Polymer Science 131(12), 40374(8 pages)
    DOI: 10.1002/app.40374
    显示于类别:[化學工程與材料工程學系暨研究所] 期刊論文

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