Self-assembled nanostructures from homopolymer induced by UV and solvent exposure

被引：8

作者：

Chada, Sailaja ^{[1
]}

Yan, Mingdi ^{[1
]}

机构：

[1] Portland State Univ, Dept Chem, Portland, OR 97201 USA

来源：

SOFT MATTER | 2008年 / 4卷 / 11期

关键词：

D O I：

10.1039/b807328g

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：

A simple method for creating self-assembled nanostructures using a single polymer system is reported. When spin-coated polystyrene thin films were irradiated with UV light and treated with toluene, unique nanostructures were observed, evolving from star-shaped networks to arrays of concentric circles. The nanostructure formation is a result of differential responses of crosslinked and oxidized products to the solvent by a combined effect of phase separation and solvent swelling. The nanostructures were observed for polymers of different molecular weights, films of different thicknesses, and on various substrates.

引用

页码：2164 / 2167

页数：4

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