Formation of particulate microporous poly(vinylidene fluoride) membranes by isothermal immersion precipitation from the 1-octanol/dimethylformamide/poly(vinylidene fluoride) system

淡江大學機構典藏 > 工學院 > 化學工程與材料工程學系暨研究所 > 期刊論文 > Item 987654321/44223

Citation Infomation

Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/44223

Title:	Formation of particulate microporous poly(vinylidene fluoride) membranes by isothermal immersion precipitation from the 1-octanol/dimethylformamide/poly(vinylidene fluoride) system
Authors:	鄭廖平;Cheng, Liao-ping;Young, Tai-horng;Fang, Lin;Gau, Jy-jie
Contributors:	淡江大學化學工程與材料工程學系
Keywords:	Poly(vinylidene fluoride);Phase diagram;Membrane
Date:	1999-04
Issue Date:	2010-03-09 10:04:11 (UTC+8)
Publisher:	London: Elsevier Ltd
Abstract:	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.
Relation:	Polymer 40(9), pp.2395-2403
DOI:	10.1016/S0032-3861(98)00462-5
Appears in Collections:	[化學工程與材料工程學系暨研究所] 期刊論文

Files in This Item:

File	Description	Size	Format
1-s2.0-S0032386198004625-main.pdf		1517Kb	Adobe PDF	1	View/Open
index.html		0Kb	HTML	417	View/Open