THERMODYNAMICS OF TAPERED STYRENE-BUTADIENE BLOCK COPOLYMERS

被引：4
|
作者：
SPONTAK, RJ
WILLIAMS, MC
机构：
[1] UNIV CALIF BERKELEY,DEPT CHEM ENGN,BERKELEY,CA 94720
[2] UNIV CALIF BERKELEY LAWRENCE BERKELEY LAB,CTR ADV MAT,BERKELEY,CA 94720
来源：
JOURNAL OF MACROMOLECULAR SCIENCE-PHYSICS | 1989年 / B28卷 / 01期
关键词：
Copolymers; -; Thermodynamics; Theory;
D O I：
10.1080/00222348908212325
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 modified version of the Leary-Henderson-Williams equilibrium thermodynamic theory is used to predict microstructural properties for tapered poly(styrene-butadiene) diblock copolymers containing a random copolymer between the blocks. The interphase thickness, interphase volume fraction, and repeat distance are all predicted to increase as the volume fraction of the added random copolymer increases, whereas the microphase-separation temperature is shown to decrease. Comparison of model results with experimental data for tapered poly(styrene-isoprene) diblock copolymers reveals good agreement for small amounts of the additional random copolymer (up to about 20 vol%).
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页码：1 / 24
页数：24
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