摘要
以正丁基锂为引发剂 ,1 ,1 二苯基乙烯为戴帽剂 ,2 (2 甲氧基乙氧基 )乙氧基锂为络合剂 ,在环己烷、四氢呋喃混合溶剂中 ,采用阴离子聚合法 ,于 - 70℃～ - 40℃合成了非极性 极性的三嵌段共聚物聚苯乙烯 聚丁二烯 聚甲基丙烯酸甲酯 (S B MMA) ,并借用GPC、1 H NMR、DSC、TEM、IR等仪器对共聚物进行了表征。结果表明 ,所得产物具备较窄的分子量分布 (Mw/Mn<1 3)及微观相分离结构。
This article reports a new kind of copolymer, non polar polar terpolymer : poly(styrene butadiene methyl methacrylate ) (P(S b B b MMA)) prepared by anionic polymerization with n BuLi as initiator, 1,1 diphenylethylene (DPE) as capping agent and lithium 2 (2 methoxyethoxy) ethoxide (LiOEEM) as complex agent. The polymerization was in a combined solution of cyclohexane and tetrahydrofuran(THF). The temperature of the polymerization ranged from -70 ℃ to -40 ℃. The structure morphology properties were studied through GPC, 1H NMR,DSC,TEM and IR. The results indicated that the copolymer P(S B MMA) has narrow molecular weight distribution (MWD<1 3) and the character of microphase separation.
出处
《北京化工大学学报（自然科学版）》
CAS
CSCD
2000年第3期29-32,共4页
Journal of Beijing University of Chemical Technology(Natural Science Edition)
基金
橡塑新型材料合成国家工程研究中心基金
关键词
苯乙烯
丁二烯
甲基丙烯酸甲酯
嵌段共聚物
anionic polymerization
styrene
butadiene
methyl methacrylate
block copolymer
