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Tunable Mesoporous Bilayer Photonic Resins with Chiral Nematic Structures and Actuator Properties
Author(s) -
Khan Mostofa K.,
Hamad Wadood Y.,
MacLachlan Mark J.
Publication year - 2014
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201304966
Subject(s) - materials science , bilayer , liquid crystal , actuator , mesoporous material , photonic crystal , photonics , nanotechnology , optoelectronics , organic chemistry , membrane , catalysis , chemistry , genetics , electrical engineering , biology , engineering
Chiral nematic structures with different helical pitch from layer to layer are embedded into phenol‐formaldehyde bilayer resin composite films using cellulose nanocrystals (CNCs) as templates. Selective removal of CNCs results in mesoporous resins with different pore size and helical pitch between the layers. Consequently, these materials exhibit photonic properties by selectively reflecting lights of two different wavelengths and concomitant actuation properties.
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