PE-b-PEO嵌段共聚物的合成及其芳烃/烷烃渗透汽化分离性能  

Synthesis of PE-b-PEO Block Copolymer and Its Pervaporation Separation of Aromatic/Aliphatic Mixtures

作　　者：杜玉升[1] 张春庆[1] 李战胜[1] 李扬[1] 

机构地区：[1]大连理工大学高分子材料系辽宁省高分子科学与工程重点实验室,辽宁大连116012

出　　处：《化学工业与工程》2010年第5期377-380,386,共5页Chemical Industry and Engineering

基　　金：国家自然科学基金资助项目(20874008)

摘　　要：采用阴离子聚合方法合成了具有不同环氧乙烷聚合度的聚丁二烯-b-聚环氧乙烷嵌段共聚物(PB-b-PEO嵌段共聚物),然后催化加氢得到聚乙烯-b-聚环氧乙烷嵌段共聚物(PE-b-PEO嵌段共聚物),使用凝胶渗透色谱仪(GPC)、核磁共振氢谱(1H-NMR)对共聚物进行了分析,结果表明所得聚合物具有预定的结构。通过熔融压片的方法制备PE-b-PEO嵌段共聚物均质膜,考察了PE-b-PEO嵌段共聚物分子链中聚环氧乙烷的聚合度对渗透汽化分离性能的影响。The poly（ethylene-b-ethylene oxide）（PE-b-PEO） block copolymers with various degrees of polymerization for PEO were prepared by hydrogenation of poly（butadiene-b-ethylene oxide） block copolymers（PB-b-PEO）,which were synthesized by anionic polymerization.The copolymers were analyzed by gel permeation chromatography（GPC） and proton nuclear magnetic resonance（^1H-NMR）.The block copolymer membranes were prepared by hot press moulding and were applied in the pervaporation separation of toluene/heptane mixtures.The effect of degree of polymerization for PEO on the performance of the membrane was investigated.

关 键 词：聚乙烯-b-环氧乙烷嵌段共聚物 阴离子聚合 渗透汽化分离 芳烃/烷烃 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]