Effects of Cooling Temperature and Aging Treatment on the Morphology of Nano- and Micro-porous EVOH Membranes by Thermal Induced Phase Separation Method

淡江大學機構典藏 > 工學院 > 化學工程與材料工程學系暨研究所 > 期刊論文 > Item 987654321/100127

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题名:	Effects of Cooling Temperature and Aging Treatment on the Morphology of Nano- and Micro-porous EVOH Membranes by Thermal Induced Phase Separation Method
作者:	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:	2014-01-23
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
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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