新型季銨化聚醚砜酮納濾膜的制備及其性能研究-

1、新型季銨化聚醚砜酮納濾膜的制備及其性能研究顏春武春瑞張守海蹇錫高*大連理工大學(xué)高分子材料系,遼寧省高性能樹脂工程技術(shù)研究中心,大連 116012 *蹇錫高(1946-,男,教授,博導(dǎo),主要從事耐高溫工程塑料和功能高分子材料的研究,通訊聯(lián)系人,0411-*,jian4616。本工作為國(guó)家“973”項(xiàng)目(2003CB615704和國(guó)家“863”項(xiàng)目(2003AA33G030的部分內(nèi)容。黃(CY對(duì)其膜性能進(jìn)行了表征。Table.1是用1000ppm的MgCl2和100ppm的染料測(cè)試不同聚合物濃度的膜性能。從表1可以看出,隨著聚合物濃度的增加,QAPPESK納濾膜對(duì)MgCl2和對(duì)染料CV的截留率增加

2、,對(duì)染料CY的截留率均為100%。這是由于當(dāng)聚合物濃度 參考文獻(xiàn)1.馮暉, 吳滬寧,沙文博,余躍,王曉琳. 化工時(shí)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