PATH-DEPENDENT MORPHOLOGIES OF A DIBLOCK COPOLYMER OF POLYSTYRENE HYDROGENATED POLYBUTADIENE

被引:131
作者
COHEN, RE
CHENG, PL
DOUZINAS, K
KOFINAS, P
BERNEY, CV
机构
[1] Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge
关键词
D O I
10.1021/ma00203a055
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
A crystallizable diblock copolymer of polystyrene/hydrogenated polybutadiene (SEB) was prepared by catalytic hydrogenation of a polystyrene/polybutadiene (SB) precursor. Changes in the morphology of SEB were observed following solution casting at temperatures below and above the melting point of the EB block. Annealing of the bulk copolymer also affected the observed morphology. A qualitative phase diagram is presented to place the observations in perspective.Path-Dependent Morphologies of a Diblock Copolymer of Polystyrene/Hydrogenated Polybutadiene. © 1990, American Chemical Society. All rights reserved.
引用
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页码:324 / 327
页数:4
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