Preliminary studies on the gelation time of poly(ether sulfones) membrane-forming system with an elongation method
文献类型：期刊论文
| 作者 | Wang, LJ; Li, ZS; Ren, JZ; Li, SG; Jiang, CZ |
| 刊名 | journal of membrane science
 |
| 出版日期 | 2006-04-20 |
| 卷号 | 275期号:1-2页码:46-51 |
| 关键词 | poly(ether sulfones) membrane gelation time elongation method |
| 英文摘要 | in this study, a new method of elongation was developed to measure the gelation time, a macroscopic time scale describing the gelation process during membrane formation. the gelation times of poly(ether suffones) (pes)/n-methyl-2-pyrrolidone (nmp)/nonsolvent membrane-forming systems were measured quantitatively for the first time. the effect of polymer concentration, approaching ratio and approaching coagulation ratio on the gelation time were systematically investigated. the results showed that the gelation time decreased with increasing approaching ratio, while increased with increasing polymer concentration in the casting solution and approaching coagulation ratio. for the membrane-forming systems studied herein, regardless of an instantaneous demixing system or a delayed demixing system, the gelation time was much longer than the delay time, and the gelation time changed in a similar pattern as the delay time. more efforts should be made to understand the role of gelation time in the process of membrane formation. (c) 2005 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; technology ; physical sciences |
| 类目[WOS] | engineering, chemical ; polymer science |
| 研究领域[WOS] | engineering ; polymer science |
| 关键词[WOS] | asymmetric polysulfone membranes ; phase-separation phenomena ; bath coagulation method ; thermoreversible gelation ; immersion precipitation ; polymer-solutions ; thermodynamic theory ; atactic polystyrene ; mass-transfer ; water |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000236455200007 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/140053]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, LJ,Li, ZS,Ren, JZ,et al. Preliminary studies on the gelation time of poly(ether sulfones) membrane-forming system with an elongation method[J]. journal of membrane science,2006,275(1-2):46-51. |
| APA | Wang, LJ,Li, ZS,Ren, JZ,Li, SG,&Jiang, CZ.(2006).Preliminary studies on the gelation time of poly(ether sulfones) membrane-forming system with an elongation method.journal of membrane science,275(1-2),46-51. |
| MLA | Wang, LJ,et al."Preliminary studies on the gelation time of poly(ether sulfones) membrane-forming system with an elongation method".journal of membrane science 275.1-2(2006):46-51. |
入库方式： OAI收割
来源：大连化学物理研究所
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