期刊論文

學年 87
學期 2
出版(發表)日期 1999-04-01
作品名稱 Formation of particulate microporous poly(vinylidene fluoride) membranes by isothermal immersion precipitation from the 1-octanol/dimethylformamide/poly(vinylidene fluoride) system
作品名稱(其他語言)
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
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國別 GBR
公開徵稿
出版型式 電子版
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