出版日期：2000-03-01 00:00:00

著者：Cheng, Liao Ping; Shaw, Horng-Yue

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 Polymer Science, Part B: Polymer Physics 38(5), pp.747-754

摘要：A phase diagram of poly(methyl methacrylate) in mixtures of water and 2-propanol, individually nonsolvents for the polymer, was studied at 25 °C. For this system, there were two liquid–liquid demixing regions separated by a miscible region. This cosolvent phenomenon was thought to be a joint effect of the nonsolvents. The phase behavior was modeled according to modified Flory–Huggins chemical-potential equations, which accounted for the possible contribution from a ternary interaction in terms of a lumped parameter, χ123. The calculated phase-equilibrium curves (binodals) agreed well with the measured results. By contrast, if only binary interaction parameters were considered, computations yielded binodals whose compositions departed significantly from the measured data. Using the wet phase inversion method with casting dopes selected on the basis of the phase diagram, we prepared membranes with microporous structures in various coagulation baths.

關鍵字：cosolvency;membrane;poly(methyl methacrylate)

語言：en

ISSN：0887-6266

期刊性質：國外

通訊作者：Cheng, Liao Ping

國別：USA

出版型式：紙本