摘要
用紫外／示差双检测器ＧＰＣ仪，小角激光光散射仪及红外光谱仪测定了苯乙烯（Ｓｔ）－丁二烯（Ｂｄ）共聚物（Ｋ树脂）的微观结构、分子量及其分布、组成分布及稀溶液特性。实验表明，Ｋ树脂是ＳＢＳ，ＳＢ和ＰＳ三段聚合物的混合物；在四氢呋喃，甲苯，氯仿和环己烷４种溶剂中，Ｋ树脂Ｍ＿Ｗ基本一致，但其特性粘数与溶剂有关，其大小按溶剂四氢呋喃、甲苯、氯仿、环己烷顺序递减。国产Ｋ树脂稀溶液的性质与国外试样基本相似。
The Microstructure,molecular weight and its distribution,composition profile and solution characterizations of butadiene-styrene copolymer(K resin)were determined by SEC(GPC),LALLS and IR.The results showed that K resin was a mixture of SBS,SB and PS,its MW was similar in the tetrahydrofuran,toluene,chloroform and cyclohexane solvents,but its intrinsic viscosity decreased progressively in the order of tetrahydrofuran,toluene,chloroform and cyclohexane.
出处
《合成橡胶工业》
CAS
CSCD
北大核心
1994年第6期358-361,共4页
China Synthetic Rubber Industry
关键词
苯乙烯
丁二烯
共聚物
特性粘数
溶液性质
butadiene-styrene coploymer
composition profile
microstructure
intrinsic viscosity
flexibility
solvent property
