Interfacial segregation in disordered block copolymers: Effect of tunable surface potentials

被引：230

作者：

Mansky, P

Russell, TP

Hawker, CJ

Mays, J

Cook, DC

Satija, SK

机构：

[1] IBM CORP,ALMADEN RES CTR,SAN JOSE,CA 95120

[2] UNIV ALABAMA,DEPT CHEM,BIRMINGHAM,AL 35294

[3] NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.79.237

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The response of disordered P(d-S-b-MMA) diblock copolymers to variable strength surface fields has been studied by neutron reflectivity. Surface interactions were controlled by end grafting P(S-r-MMA) random copolymers with various styrene contents onto Si substrates. segregation of the block copolymer was proportional to the surface potential. in the degree of segregation was observed as the brush composition was varied. Conditions were found which yielded neutral boundary conditions simultaneously at the vacuum and substrate interfaces.

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页码：237 / 240

页数：4

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