摘要
通过硅氢加成反应,以甲基丙烯酸甲酯(MMA)、乙烯基三乙氧基硅烷(VTES)和含氢硅油为原料,合成了链状分子交联剂PMV。并与端羟基聚二甲基硅氧烷进行交联反应,制备得到气体分离膜PDMS/PMV。研究了该膜对CO2/N2的分离性能。结果表明:PDMS/PMV膜比仅用VTES交联的PDMS膜(PDMS/VTES)CO2渗透通量和选择性均显著提高,随着交联剂中MMA:VTES的摩尔比的增加,PDMS/PMV膜的CO2渗透性和CO2/N2选择性都提高,当MMA:VTES的摩尔比为3∶7时,膜的CO2气体渗透通量达到4556barrer,CO2/N2的选择性达到10.16。
New crosslinking agent PMV were synthesized by the addition reaction of methylmethacrylate（MMA）, vinyltriethoxysilane（VTES） and polymethylhydrogen siloxane（PMHS）. Further PDMS/PMV membranes were prepared by crosslinking hydroxyl-terminated polysiloxane with PMV and their CO2/N2 separation performance was investigated. The results indicated that CO2/N2 selectivity and CO2 permeability of PDMS/PMV membrane showed obviously higher compared with the pure VTES cross-linked PDMS membrane. Further. with the increase of the molar ratio of MMA： VTES in PMV,both the selectivity of CO2/N2 and CO2 permeationrate increased. The best CO2/N2 selectivity and COz perme- ationrate reached 10. 16 and 4556 barrer,respectively.
出处
《化工新型材料》
CAS
CSCD
北大核心
2013年第11期155-157,共3页
New Chemical Materials
基金
国家自然科学基金(21106053)
中央高校基本科研业务费(JUSRP21113)
江苏省科技型中小企业技术创新基金(BC2010017)
关键词
链状分子交联剂
聚二甲基硅氧烷
气体分离
膜
catenulate erosslinking agent, oolydimethylsiloxane, gas separation, membrane
