ATOMIC FORCE MICROSCOPY STUDY OF LATEX FILM FORMATION

被引：108

作者：

WANG, Y ^{[1
]}

JUHUE, D ^{[1
]}

WINNIK, MA ^{[1
]}

LEUNG, OM ^{[1
]}

GOH, MC ^{[1
]}

机构：

[1] UNIV TORONTO,DEPT CHEM,80 ST GEORGE ST,TORONTO M5S 1A1,ONTARIO,CANADA

来源：

LANGMUIR | 1992年 / 8卷 / 03期

关键词：

D O I：

10.1021/la00039a004

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Atomic force microscopy (AFM) images are reported for the surfaces of poly(butyl methacrylate) (PBMA) latex films. Films (30-mu-m thick) prepared by casting onto atomically smooth mica from surfactant-free latex dispersions show long-range periodic order consistent with face-centered cubic packing. Spin-coated films exhibit an open structure composed of particle clusters. Each cluster is highly ordered, but the ordering extends only over 10 or so particles. When the cast films are annealed (6 h, 70-degrees-C), particle-size holes appear in the film surface. We expect that these occur through relaxation of internal defects which allow individual particles to fall from the surface layer into an internal void.

引用

页码：760 / 762

页数：3

共 19 条

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