华东理工大学学报：社会科学版
華東理工大學學報：社會科學版
화동리공대학학보：사회과학판
SOCIAL SCIENCES JOURNAL OF ECUST
2008年
5期
~
,共null页
张锴 周颖坚 孙刚 郑安呐
張鍇 週穎堅 孫剛 鄭安吶
장개 주영견 손강 정안눌
苯乙烯 异戊二烯 反应挤出 四氢呋喃
苯乙烯 異戊二烯 反應擠齣 四氫呋喃
분을희 이무이희 반응제출 사경부남
styrene; isoprene; reactive extrusion; tetrahydrofuran;
为研究极性调节剂对反应挤出苯乙烯类共聚物微观结构的影响,以双螺杆挤出机为反应器,有机锂为引发剂,四氢呋喃(THF)为极性调节剂,采用苯乙烯/异戊二烯(S/I)混合单体一次加料反应挤出技术合成了S/I共聚物,1H-NMR、GPC、DMA和TEM的分析结果表明:THF提高了共聚物的3,4-结构异戊二烯含量,使分散相尺寸变得细小且均匀,两相相容性提高;共聚物链段中长嵌段聚苯乙烯含量较少,并与大量分布较均匀的聚苯乙烯短嵌段、聚异戊二烯短嵌段以及无规共聚的苯乙烯单元共同组成完整的分子链。
為研究極性調節劑對反應擠齣苯乙烯類共聚物微觀結構的影響,以雙螺桿擠齣機為反應器,有機鋰為引髮劑,四氫呋喃(THF)為極性調節劑,採用苯乙烯/異戊二烯(S/I)混閤單體一次加料反應擠齣技術閤成瞭S/I共聚物,1H-NMR、GPC、DMA和TEM的分析結果錶明:THF提高瞭共聚物的3,4-結構異戊二烯含量,使分散相呎吋變得細小且均勻,兩相相容性提高;共聚物鏈段中長嵌段聚苯乙烯含量較少,併與大量分佈較均勻的聚苯乙烯短嵌段、聚異戊二烯短嵌段以及無規共聚的苯乙烯單元共同組成完整的分子鏈。
위연구겁성조절제대반응제출분을희류공취물미관결구적영향,이쌍라간제출궤위반응기,유궤리위인발제,사경부남(THF)위겁성조절제,채용분을희/이무이희(S/I)혼합단체일차가료반응제출기술합성료S/I공취물,1H-NMR、GPC、DMA화TEM적분석결과표명:THF제고료공취물적3,4-결구이무이희함량,사분산상척촌변득세소차균균,량상상용성제고;공취물련단중장감단취분을희함량교소,병여대량분포교균균적취분을희단감단、취이무이희단감단이급무규공취적분을희단원공동조성완정적분자련。
By means of the closely intermeshing twin-screw extruder as the reactor,tetrahydrofuran(THF) as the polar additive,mixed styrene(S) and isoprene(I) as the monomer,a S/I copolymer was synthesized by reactive extrusion in order to study the microstructure.The effects of THF on the structure of the S/I copolymers were studied.It was proved by results of()~(1)H-NMR、GPC、DMA and TEM,that the content of 3,4-PI was increased with the fedding of THF,the domain of the disperse phase became smaller with homegenous dis...
