Effects of Cooling Temperature and Aging Treatment on the Morphology of Nano- and Micro-porous EVOH Membranes by Thermal Induced Phase Separation Method
學年 102
學期 1
出版(發表)日期 2014-01-23
作品名稱 Effects of Cooling Temperature and Aging Treatment on the Morphology of Nano- and Micro-porous EVOH Membranes by Thermal Induced Phase Separation Method
作品名稱(其他語言)
著者 Lin, Dar-jong; Cheng, Liao-ping
單位 淡江大學化學工程與材料工程學系
出版者 Hoboken: John Wiley & Sons, Inc.
著錄名稱、卷期、頁數 Journal of Applied Polymer Science 131(12), 40374
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.
關鍵字 membranes;crystallization;ageing;nanostructured polymers;morphology
語言 en
ISSN 1097-4628
期刊性質 國外
收錄於 SCI
產學合作
通訊作者 Cheng, Liao-Ping
審稿制度
國別 USA
公開徵稿
出版型式 ,電子版
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