Phase separation analysis of Extem/solvent/non-solvent systems and relation with membrane morphology

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• 作者：Saeed Mazinani^a ; ^{saeed.mazinani@kuleuven.be} ; Siavash Darvishmanesh^b ; Arash Ehsanzadeh^a ; Bart Van der Bruggen^a
• 关键词：Ternary phase diagram ; Binodal curve ; Extem ; Coagulant ; Membrane morphology
• 刊名：Journal of Membrane Science
• 出版年：2017
• 出版时间：15 March 2017
• 年：2017
• 卷：526
• 期：Complete
• 页码：301-314
• 全文大小：1727 K
• 卷排序：526

文摘

The phase separation behavior of Extem/solvent/non-solvent systems for different solvents and coagulants was investigated. Ternary phase diagrams of studied systems were constructed based on cloud point data obtained by titration at room temperature. The linearized cloud point and precipitation value for Extem/NMP/non-solvent systems were applied. The solubility curve of Extem was obtained using the Hansen solubility parameter, calculated by a group contribution method. Scanning electron microscopy (SEM) was used to evaluate the effect of different solvents and non-solvents on the final structure of resulting membranes.