出版日期：1999-04-01 00:00:00

著者：鄭廖平; Cheng, Liao-ping; Young, Tai-horng; Fang, Lin; Gau, Jy-jie

單位：淡江大學化學工程與材料工程學系

出版者：London: Elsevier Ltd

著錄名稱、卷期、頁數：Polymer 40(9), pp.2395-2403

摘要：Phase diagrams were determined for poly(vinylidene fluoride) (PVDF) and a terpolymer of vinylidene fluoride, hexafluoropropylene, and tetrafluoroethylene (VDF/HFP/TFE) in solutions composed of 1-octanol and dimethylformamide at 25°C. From the measured gelation and liquid–liquid phase separation data, binary interaction parameters were computed using a modified Flory–Huggins theory. PVDF microporous membranes were then prepared by isothermal immersion precipitation processes in various doping conditions. The formed membrane exhibited a particulate morphology characterized by a uniform package of spherical particles of identical size. These particles were identified to be full spherulites of PVDF using scanning electron microscopy, differential scanning calorimetry and small angle light scattering techniques.

關鍵字：Poly(vinylidene fluoride); Phase diagram; Membrane

語言：en

ISSN：0032-3861

期刊性質：國外

國別：GBR

出版型式：電子版