Polymer phase separation on lattice patterned surfaces

被引：19

作者：

Andrew, Piers

Huck, Wilhelm T. S.

机构：

[1] Univ Cambridge, Nanosci Ctr, Cambridge CB3 0FF, England

[2] Univ Cambridge, Dept Chem, Melville Lab Polymer Synth, Cambridge CB2 1EW, England

来源：

SOFT MATTER | 2007年 / 3卷 / 02期

关键词：

D O I：

10.1039/b613593e

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：

We demonstrate the self-organization of phase-separated polymer microstructures on two-dimensionally chemically patterned surfaces. Pattern replication is expected when both the blend composition ratio matches the surface patterning area ratio, and the pattern periodicity matches the natural phase separation length scale. By varying film thickness and blend composition, we show that ordered morphologies also result for contrary situations, resulting in the formation of a rich variety of hierarchically-ordered microstructures. This hierarchy suggests that non-equilibrium structures generated by incomplete phase separation of blend components are locked in by rapid solvent quenching during casting.

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收藏

页码：230 / 237

页数：8

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