丙烯腈类共聚物膜用于醇水分离的研究 Ⅳ.丙烯腈与丙烯酰胺共聚物膜  

SEPARATION OF WATER-ETHANOL MIXTURFS THROUGH ACRYLONITRILE COPOLYMER MEMBRANES Ⅳ.ACRYLONITRILE AND ACRYLAMIDE COPOLYMER MEMBRANES

作　　者：张富尧[1] 张一烽[1] 孙彤 沈之荃[1] 

机构地区：[1]浙江大学化学系,杭州310027

出　　处：《应用化学》1993年第2期89-91,共3页Chinese Journal of Applied Chemistry

基　　金：高等学校博士学科点专项科研基金;浙江省自然科学基金;浙江省科委资助

摘　　要：渗透蒸发用于热敏物质、恒沸物质和组分间沸点相近的有机液体混合物的分离,可节能和简化操作,如乙醇水混合液的分离。 硅橡胶,聚三甲基硅丙炔等少量聚合物属于透醇性膜,而天然高分子膜,离子交换膜以及含亲水基团的共聚物膜等均为透水性膜,尤其是含亲水基团共聚物膜具有力学性能好。Aerylonitrfle and acrylamide copolyner has been synthesized by radical polymerization using ammonium persuLfate and sodium bisulfite as initiator. The dependences of pervaporation characteristics on the copolymer composition, feed concentration and operating temperature have been studied. In order to improve the separation properties of the copolymeric membranes, the blend membranes of poly(aerylonitrfle-co-aerylamide)(Ⅰ) and poly(aerylonitrile-co-acrylie acid)(Ⅱ) have been made from their DMF solutions. It was found that the separation factor of the blend membrane had a much greater value when the weight fraction of copolymer(Ⅱ) was less than 50%.

关 键 词：丙烯腈 丙烯酰胺 共聚物 乙醇 水 

分 类 号：O623.411[理学—有机化学]