CAS OpenIR  > 中科院上海应用物理研究所2004-2010年
Preparation of microporous poly(vinylidene fluoride) membranes via phase inversion in supercritical CO2
Huang, SR; Wu, GZ(吴国忠); Chen, SM(陈仕谋); Wu, GZ (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
2007
Source PublicationJOURNAL OF MEMBRANE SCIENCE
ISSN0376-7388
Volume293Issue:40545Pages:100
AbstractMicroporous poly(vinylidene fluoride) (PVDF) membranes were prepared from PVDF/N,N-dimethylacetamide (DMAC) solutions by using supercritical CO2 phase inversion process. As revealed by scanning electron microscope (SEM) and differential scanning calorimeter (DSC), the PVDF membranes exhibit morphological characteristics resulting from both liquid-liquid phase separation and crystallization, i.e., cellular pores surrounded by interlinked PVDF particulate crystallites. This indicates that both types of phase separation processes take place in the supercritical CO2 phase inversion process. The effects of pressure, temperature, and initial polymer concentration on the final membrane structures were investigated. We also investigated the effect of addition of poly(methyl methacrylate) (PMMA) in the casting dope on the PVDF membrane structure. The membrane structure changed significantly with the variation of PVDF/PMMA mass ratio in the casting dope as well as polymer concentration. It was found that the variation of temperature and pressure has a minor influence on the membrane structure. (c) 2007 Elsevier B.V. All rights reserved.
KeywordPoly(Vinylidene Fluoride) Poly(Methyl Methacrylate) Microporous Membrane Supercritical Co2 Phase Inversion
Subject AreaChemistry ; Physics
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000245971600012
Citation statistics
Cited Times:37[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/8167
Collection中科院上海应用物理研究所2004-2010年
Corresponding AuthorWu, GZ (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
Recommended Citation
GB/T 7714
Huang, SR,Wu, GZ,Chen, SM,et al. Preparation of microporous poly(vinylidene fluoride) membranes via phase inversion in supercritical CO2[J]. JOURNAL OF MEMBRANE SCIENCE,2007,293(40545):100.
APA Huang, SR,Wu, GZ,Chen, SM,&Wu, GZ .(2007).Preparation of microporous poly(vinylidene fluoride) membranes via phase inversion in supercritical CO2.JOURNAL OF MEMBRANE SCIENCE,293(40545),100.
MLA Huang, SR,et al."Preparation of microporous poly(vinylidene fluoride) membranes via phase inversion in supercritical CO2".JOURNAL OF MEMBRANE SCIENCE 293.40545(2007):100.
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