聚醋酸乙烯酯(PVAc)/聚离子液体(PILs)半互穿聚合物网络膜的制备及气体分离性能  

Preparation and gas separation property of polyvinyl acetate/poly(ionic liquid)semi-interpenetrating polymer network membranes

作　　者：白云翔[1] 高慧[1] 张春芳[1] 顾瑾[1] 孙余凭[1] 

机构地区：[1]江南大学食品胶体与生物技术教育部重点实验室化学与材料工程学院,无锡214122

出　　处：《膜科学与技术》2014年第4期61-66,共6页Membrane Science and Technology

基　　金：国家自然科学基金资助项目(21106053);江苏省产学研联合创新基金(BY2013015-28)

摘　　要：利用紫外光固化法,制备了聚醋酸乙烯酯(PVAc)/聚离子液体(PILs)半互穿聚合物网络膜,用于CO2/N2的分离,并对其化学结构、形貌及热稳定性进行了表征.结果表明,加入PILs后,半互穿膜的热稳定性增加,并且PILs与PVAc的相容性较好,随着PILs含量的增加,PVAc/PILs半互穿膜的CO2和N2渗透系数和溶解度系数均提高,渗透选择性先增后减,当PILs含量为50%时达到最大值64.20.Polyvinyl acetate （PVAc）/poly （ionic liquid） semi-interpenetrating polymer network （S-IPN） membrane,PVAc/PILs,were successfully prepared by UV curing and used for the separation of CO2 and N2.The results shows that PVAc/PILs S-IPN possess better stability and mechanical properties than PILs,and PILs has good compatibility with PVAc when PILs content is ranging from 10％ to 60％,With the increase of PILs content,both the permeability and solubility coefficient of CO2 and N2 were enhanced when PILs content is lower than 50％.While CO2/N2 selectivity began to decrease after it reached the highest value of 64.20 with PILs content of 50％.

关 键 词：聚醋酸乙烯酯 聚离子液体 半互穿聚合物膜 气体分离 

分 类 号：TQ028.8[化学工程]