4.7 Article

Synthesis of sulfonated polyphenylsulfone as candidates for antifouling ultrafiltration membrane

期刊

SEPARATION AND PURIFICATION TECHNOLOGY
卷 98, 期 -, 页码 298-307

出版社

ELSEVIER
DOI: 10.1016/j.seppur.2012.06.031

关键词

Sulfonated polyphenylsulfone; Ultrafiltration; Antifouling; Membrane morphology

资金

  1. National High Technology Research and Development Program of China (863 Program) [2012AA03A212]

向作者/读者索取更多资源

This work focused on the synthesis of a series of sulfonated polyphenylsulfone (SPPSU) random copolymers with various controlled sulfonation levels by using sulfonated monomer in direct copolymerization method and the preparation of antifouling SPPSU ultrafiltration membranes via the conventional immersion precipitation phase inversion method. The chemical structures of the SPPSU copolymers were confirmed by using Fourier transform infrared spectrometer (FTIR) and their thermal properties were thoroughly characterized by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The morphologies of the SPPSU membranes were investigated by scanning electron microscopy (SEM), and the morphology changes of these resultant membranes had been detailedly explained and verified by Hansen solubility parameters (HSPs) from thermodynamic theory. In addition, the surface hydrophilicity and charged property of the SPPSU membranes were studied by water contact angle and membrane potential measurements, and the results indicated that the sulfonation of membrane material is really an effective way to enhance the hydrophilicity and negatively charge the membrane. The pure water flux and protein solution permeation through the prepared membranes were increased with the increase of the degree of sulfonation. The cycle ultrafiltration experiments for protein solution revealed that nonspecific protein adsorption, especially irreversible protein adsorption, for the SPPSU membranes was significantly reduced, suggesting superior antifouling performance. Crown Copyright (C) 2012 Published by Elsevier B.V. All rights reserved.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据