摘要
采用亲电取代反应成功合成磺化聚醚砜(SPES),利用聚醚砜(PES)与其共混制备SPES/PES平板超滤膜,并对其进行性能表征.实验表明:当SPES质量分数为40%时水通量达到最大值409.8L/(cm2.h),牛血清蛋白(BSA)截留率达到99.8%,BSA吸附量减少了近50%.与单纯的PES膜相比,由于强亲水性基团磺酸基团(-SO3H)的成功引入,使共混膜的水接触角减小,含水率提高,其亲水性得到了显著改善.
Sulfonated polyethersulfone （SPES）,which was prepared by eletrophilic substituent reaction, was blended with PES to obtained SPES/PES flat ultrafihration membrane and its properties were tested. The pure water flux test showed that the pure water flux reached max 409.8 L/（cm^2·h） when the amount of SPES was 40%. The BSA retention reached 99.8%, while the BSA adsorption reduced approximately half. Introducing of the hydrophilic sulfonic group （-SO3H） into the blending membrane made its water contact angle decreased, water adsorption increased, and its hydrophilicity was improved obviously.
出处
《天津工业大学学报》
CAS
北大核心
2009年第1期6-9,共4页
Journal of Tiangong University
基金
国际科学合作重点项目(2005DFA50160)
关键词
磺化聚醚砜
聚醚砜
共混超滤膜
亲水性
sulfonated polyethersulfone
polyethersulfone
blending ultrafihration meinbrane
hydrophilicity
