Knowledge Management System Of Shanghai Institute of Applied Physics, CAS
| 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 Publication | JOURNAL OF MEMBRANE SCIENCE
 |
| ISSN | 0376-7388 |
| Volume | 293Issue:40545Pages:100 |
| Abstract | Microporous 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. |
| Keyword | Poly(Vinylidene Fluoride) Poly(Methyl Methacrylate) Microporous Membrane Supercritical Co2 Phase Inversion |
| Subject Area | Chemistry ; Physics |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 应物所项目组 |
| WOS ID | WOS:000245971600012 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/8167 |
| Collection | 中科院上海应用物理研究所2004-2010年 |
| Corresponding Author | Wu, 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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