新型季铵化聚醚砜酮纳滤膜的制备及其性能研究-

1、新型季铵化聚醚砜酮纳滤膜的制备及其性能研究颜春武春瑞张守海蹇锡高*大连理工大学高分子材料系,辽宁省高性能树脂工程技术研究中心,大连 116012 *蹇锡高(1946-,男,教授,博导,主要从事耐高温工程塑料和功能高分子材料的研究,通讯联系人,0411-*,jian4616。本工作为国家“973”项目(2003CB615704和国家“863”项目(2003AA33G030的部分内容。黄(CY对其膜性能进行了表征。Table.1是用1000ppm的MgCl2和100ppm的染料测试不同聚合物浓度的膜性能。从表1可以看出,随着聚合物浓度的增加,QAPPESK纳滤膜对MgCl2和对染料CV的截留率增加

2、,对染料CY的截留率均为100%。这是由于当聚合物浓度 参考文献1.冯晖, 吴沪宁,沙文博,余跃,王晓琳. 化工时刊,2004,18:462. Ismail Koyuncu, Desalination, 2002, 143: 2433. A. Akbari, S. Desclaux, J. C. Remigy, P. Aptel. Desalination, 2002, 149: 101Preparation and characterization of Novel QAPPESKNanofiltration MembraneYAN Chun WU Chun-rui ZHANG Shou-h

3、ai JIAN Xi-gao(Department of Polymer Materials,Dalian University of Technology, Dalian, Liaoning116012Abstract: Novel quaternized poly(phthalazinone ether sulfone ketone (QAPPESK NF membranes were obtained by two steps. Chloromethylated poly(phthalazinone ether sulfone ketone (CMPPESK membranes were

4、 firstly prepared with CMPPESK as membrane materials and N-methyl-2-pyrrolidine (NMP as solvent. T hen CMPPESK membranes were quaternized with 0.2mol/L aqueous trimethylamine solution to obtain QAPPESK positively charged nanofiltration membrane. The effects of polymer concentration and contents of a

5、dditives on the membrane performance were examined. The effects of MgCl2 solution and dyes such as centian violet(CV and clayton yellow(CY on the membrane performance were also studied. The results showed that rejection to MgCl2 got up to 42% and CV rejections attained 99% when the polymer concentration was 24%. When the concentration of EGME exceeded 5%, CY rejections greater than 99.9% were achieved. Permeate