Reversible Switching of the Shear Modulus of Photoresponsive Liquid-Crystalline Polymers

被引：34

作者：

Verploegen, Eric ^{[2
]}

Soulages, Johannes ^{[3
]}

Kozberg, Mariel ^{[1
]}

Zhang, Tejia ^{[4
]}

McKinley, Gareth ^{[3
]}

Hammond, Paula ^{[1
]}

机构：

[1] MIT, Dept Chem Engn, Cambridge, MA 02139 USA

[2] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA

[3] MIT, Dept Mech Engn, Hatsopoulos Microfluids Lab, Cambridge, MA 02139 USA

[4] MIT, Dept Chem, Cambridge, MA 02139 USA

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2009年 / 48卷 / 19期

关键词：

azo componds; isomerization; liquid crystals; polymers; rheological properties; ELASTOMERS; FILMS; LIGHT; BEHAVIOR;

D O I：

10.1002/anie.200900583

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Manipulation makes light work: The morphology and rheological properties of a liquidcrystalline system can be dynamically manipulated with UV light by attaching photoresponsive liquidcrystalline moieties to a siloxane-based polymer. Stimulation with UV light induces a conformational change in the molecule, which disrupts the liquid-crystalline mesophase (see picture), and results in a dramatic change in its rheological properties. © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

收藏

页码：3494 / 3498

页数：5

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