ADSORPTION OF TRIBLOCK COPOLYMERS ON ROUGH SURFACES

被引:23
作者
BALAZS, AC [1 ]
HUANG, KL [1 ]
LANTMAN, CW [1 ]
机构
[1] BAYER USA INC,MOBAY CORP,PITTSBURGH,PA 15205
关键词
D O I
10.1021/ma00223a023
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 examine the adsorption of ABA triblocks in solution onto a rough, corrugated surface. The solution is assumed to be a good solvent for the B block and a bad solvent for the A segments. Solvent incompatibility drives the A blocks to adsorb onto the nearest interface. We find that, under favorable conditions, the A moieties bind to the ridges of the bumpy surface and the B segments span the wells that lie between two ridges. Consequently, the adsorption of triblocks acts to smooth or planarize a rough surface. We discuss how chain length and the value of XBS, the interaction energy between the B block and the surface, affect the efficiency of this process. © 1990, American Chemical Society. All rights reserved.
引用
收藏
页码:4641 / 4647
页数:7
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