ADSORPTION AND THIN-FILM FORMATION OF DIBLOCK AND TRIBLOCK COPOLYMERS

被引：8

作者：

STAMM, M ^{[1
]}

DORGAN, JR ^{[1
]}

机构：

[1] COLORADO SCH MINES,DEPT CHEM ENGN & PETR REFINING,GOLDEN,CO 80402

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 1994年 / 86卷

关键词：

ADSORPTION; DIBLOCK COPOLYMERS; ELLIPSOMETRY; TRIBLOCK COPOLYMERS; THIN FILM FORMATION;

D O I：

10.1016/0927-7757(94)02836-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The adsorption of diblock and triblock copolymers of styrene and ethylene oxide, P(S-b-EO), from dilute solution is studied by ellipsometry. The copolymers consist of short poly(ethylene oxide) blocks which adsorb onto a silicon wafer and longer polystyrene blocks which do not adsorb on the substrate under the conditions employed, but dangle in solution. Surface coverage is monitored as a function of time, and different time regimes are resolved. The equilibrium surface coverage is discussed with respect to scaling models where the ratio of the block lengths determines the adsorption behaviour. Also, dry films of adsorbed copolymers are analysed by ellipsometry and X-ray reflectometry.

引用

页码：143 / 153

页数：11

共 23 条

[1] POLYMER ADSORPTION ON SMALL SPHERES - SCALING APPROACH [J].