Photochemical surface modification of poly(arylsulfone) ultrafiltration membrane and covalent immobilization of enzyme  

作　　者：SONGHua WUGuang-xia LIUKai 

机构地区：[1]ResearchCenterforEco-EnvironmentalSciences,ChineseAcademyofSciences,Beijing100085,China

出　　处：《Journal of Environmental Sciences》2004年第3期392-396,共5页环境科学学报（英文版）

基　　金：BeijingNaturalScienceFoundation(No.2 0 2 1 0 0 2 )

摘　　要：The sensitivity of poly(arylsulfone)(PSf) for UV irradiation in different solvents(water and ethanol) was investigated. It is confirmed that acrylic acid(AA) and acrylamide(AAm) are grafted only onto the surface of the membrane instead of the interior by FTIR and scanning electron microscope(SEM). The membrane performance(Δ J/J 0 and contact angle θ ) after photografting was studied. In the range of conditions used, the grafting yield increases with irradiation time and monomer concentration growing. After photografting and N 3 dimethyl aminopropyl N' ethycarbodiimide hydrochloride(EDC) activation, PSf membrane was immobilized with hydrogen peroxide oxidoreductase, and showed a higher activity than the control membrane.The sensitivity of poly(arylsulfone)(PSf) for UV irradiation in different solvents(water and ethanol) was investigated. It is confirmed that acrylic acid(AA) and acrylamide(AAm) are grafted only onto the surface of the membrane instead of the interior by FTIR and scanning electron microscope(SEM). The membrane performance(Δ J/J 0 and contact angle θ ) after photografting was studied. In the range of conditions used, the grafting yield increases with irradiation time and monomer concentration growing. After photografting and N 3 dimethyl aminopropyl N' ethycarbodiimide hydrochloride(EDC) activation, PSf membrane was immobilized with hydrogen peroxide oxidoreductase, and showed a higher activity than the control membrane.

关 键 词：PHOTOGRAFTING poly(arylsulfone) ultrafiltration membrane IMMOBILIZATION 

分 类 号：X703.1[环境科学与工程—环境工程]