溶剂对SBS溶液浇铸膜形态结构及性能影响  

Effect of Solvents on the Morphology and Properties of SBS Solution Cast Films

作　　者：王铀[1] 董尧[2] 沈静姝[2] 龙程奋[2] 

机构地区：[1]哈尔滨工业大学应用化学系,哈尔滨150001 [2]中国科学院化学所,北京100080

出　　处：《高等学校化学学报》2000年第7期1154-1156,共3页Chemical Journal of Chinese Universities

基　　金：国家基础研究重大关键项目基金!(批准号 :9511)资助

摘　　要：The effect of solvents on the morphology and properties of styrene-butadiene-styrene（SBS, \{Mn=\}99 575, Mw/Mn=1.3, S/B=3∶7） triblock copolymer films was studied in this paper. The solvents used in the study are: ethylmethylketone, a preferential solvent for the PS block; toluene, a non-preferential solvent for both the PS and the PB blocks; and mixed hexane/cyclohexane（2/5, in volume ratio）, a preferential solvent for the PB block. The morphology of samples cast from solutions from different solvents and then stained by RuO4 was observed by TEM. Moreover, the tensile properties and deformation recovery behavior for these samples were measured and the results are explained according to the microstructures observed.The effect of solvents on the morphology and properties of styrene-butadiene-styrene(SBS, \{M_n=\}99 575, M_w/M_n=1.3, S/B=3∶7) triblock copolymer films was studied in this paper. The solvents used in the study are: ethylmethylketone, a preferential solvent for the PS block; toluene, a non-preferential solvent for both the PS and the PB blocks; and mixed hexane/cyclohexane(2/5, in volume ratio), a preferential solvent for the PB block. The morphology of samples cast from solutions from different solvents and then stained by RuO_4 was observed by TEM. Moreover, the tensile properties and deformation recovery behavior for these samples were measured and the results are explained according to the microstructures observed.

关 键 词：微观相分离 溶剂 SBS 浇铸膜 结构 性能 

分 类 号：TQ325.1[化学工程—合成树脂塑料工业]