Reversible Switching of the Shear Modulus of Photoresponsive Liquid‐Crystalline Polymers | Zendy

Verploegen Eric | Zendy; Soulages Johannes | Zendy; Kozberg Mariel | Zendy; Zhang Tejia | Zendy; McKinley Gareth | Zendy; Hammond Paula | Zendy

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

Author(s) -

Verploegen Eric,

Soulages Johannes,

Kozberg Mariel,

Zhang Tejia,

McKinley Gareth,

Hammond Paula

Publication year - 2009

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.200900583

Subject(s) - liquid crystalline , mesophase , rheology , polymer , siloxane , materials science , liquid crystal , molecule , chemical engineering , modulus , conformational change , polymer chemistry , chemistry , composite material , organic chemistry , stereochemistry , optoelectronics , engineering

Manipulation makes light work : The morphology and rheological properties of a liquid‐crystalline system can be dynamically manipulated with UV light by attaching photoresponsive liquid‐crystalline 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.

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