中山大学学报(自然科学版)2007，Vol.46Issue(z1)：296-297,2.
聚丙烯接枝聚丙烯酸中空纤维膜的pH响应性
The pH Dependence of Poly(acrylic acid)-graft-Polypropylene Hollow Fiber Membrane
刘燕军 1吕春英 2陈蕊 2傅学起1
作者信息
- 1. 南开大学环境科学与工程学院,天津,300071
- 2. 天津工业大学材料化工学院,天津,300160
- 折叠
摘要
Abstract
The pH dependence of poly (acrylic acid)-graft-polypropylene membranes were evaluated. The result shows that pH sensitivity of grafted membranes increases with the rise of grafting degree (dg) as dg<17%. For the microfiltration of Bovine serum albumin (BSA) solution, all membranes show the most serious fouling behavior at pH 4.7(the isoelectric point IEP of BSA) and the smallest flux decline at pH 3. Compared with the ungrafted PP membrane, grafted membranes show more serious fouling behavior at pH 3, whereas 18% grafted membrane has a certain antifouling behavior at pH 4.7 and 8. It has been shown that the electrical interactions and the conformation of BSA and grafted chains should be considered to analyze the fouling behavior.关键词
pH敏感性/水渗透性/牛血清蛋白/微滤Key words
pH sensitivity/water permeability/Bovine serum albumin/microfiltration分类
化学化工引用本文复制引用
刘燕军,吕春英,陈蕊,傅学起..聚丙烯接枝聚丙烯酸中空纤维膜的pH响应性[J].中山大学学报(自然科学版),2007,46(z1):296-297,2.
