pH Sensitive polypropylene porous membrane prepared by grafting acrylic acid in supercritical carbon dioxide
文献类型：期刊论文
| 作者 | Wang, Y; Liu, ZM; Han, BX; Dong, ZX; Wang, JQ; Sun, DH; Huang, Y; Chen, GW |
| 刊名 | POLYMER
 |
| 出版日期 | 2004-02-01 |
| 卷号 | 45期号:3页码:855-860 |
| 关键词 | Ph Sensitive Membrane Supercritical Carbon Dioxide |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2003.11.042 |
| 英文摘要 | pH sensitive membrane was prepared by grafting acrylic acid (AA) on the porous polypropylene (PP) membrane using supercritical (SC) CO, as a solvent. The monomer (AA) and the initiator (benzyl peroxide, BPO) were impregnated into the PP substrate with the aid of SC CO2, and were grafted onto the microporous PP substrate. The grafted membranes were characterized by Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FE-SEM), and the water permeability of the virgin and grafted membranes were determined at different pH values. It was demonstrated that the grafting degree (Dg) could be easily controlled by varying operating conditions, such as the monomer concentration, pressure, and temperature during the soaking process. The water permeation of the virgin membrane is nearly independent of pH. However, the water permeation of grafted membranes decreases dramatically with pH as the pH varies from 3 to 6 because the conformation of the PAA changes significantly with the pH of the contacting solution. (C) 2003 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000188300900015 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/55795]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Liu, ZM |
| 作者单位 | Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Y,Liu, ZM,Han, BX,et al. pH Sensitive polypropylene porous membrane prepared by grafting acrylic acid in supercritical carbon dioxide[J]. POLYMER,2004,45(3):855-860. |
| APA | Wang, Y.,Liu, ZM.,Han, BX.,Dong, ZX.,Wang, JQ.,...&Chen, GW.(2004).pH Sensitive polypropylene porous membrane prepared by grafting acrylic acid in supercritical carbon dioxide.POLYMER,45(3),855-860. |
| MLA | Wang, Y,et al."pH Sensitive polypropylene porous membrane prepared by grafting acrylic acid in supercritical carbon dioxide".POLYMER 45.3(2004):855-860. |
入库方式： OAI收割
来源：化学研究所
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