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Photo‐Switchable Surface Topologies in Chiral Nematic Coatings
Author(s) -
Liu Danqing,
Bastiaansen Cees W. M.,
den Toonder Jaap M. J.,
Broer Dirk J.
Publication year - 2012
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.201105101
Subject(s) - azobenzene , liquid crystal , polymer , materials science , network topology , coating , polymer network , optoelectronics , nanotechnology , composite material , computer science , operating system
An enlightening answer : Dynamic surface photo‐responsive topologies of a polymer coating were realized by introducing azobenzene crosslinkers into liquid‐crystal polymer networks (see picture). The principle of these coatings is based on breaking the molecular order in the liquid‐crystal polymer networks. Under irradiation of UV light the azobenzene compound isomerizes from the trans to the cis conformation.