FORMATION OF MICELLES OF DIBLOCK AND TRIBLOCK COPOLYMERS IN A SELECTIVE SOLVENT

被引:55
作者
IZZO, D
MARQUES, CM
机构
[1] INST CHARLES SADRON,6 RUE BOUSSINGAULT,F-67083 STRASBOURG,FRANCE
[2] UNIV SAO PAULO,INST FIS,BR-01498 SAO PAULO,BRAZIL
关键词
D O I
10.1021/ma00078a012
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
We study theoretically the formation of dilute phases of spherical (micelles), cylindrical (vermicelles), and planar (lamellae) aggregates of copolymer chains in a selective solvent. In the case of diblock copolymer chains, micelles are formed for all values of the block asymmetry in the regime where dilute phases are predicted to occur (N(A) much less than N(B)3/2, with N(A) and N(B) the polymerization indices of the A-collapsed and B-swollen blocks). For B-A-B triblock copolymers we find that spherical or cylindrical hollow structures might exist in the solvent in a metastable state with a long associated lifetime.
引用
收藏
页码:7189 / 7194
页数:6
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