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Stimuli‐Responsive Materials Based on Interpenetrating Polymer Liquid Crystal Hydrogels
Author(s) -
Stumpel Jelle E.,
Gil Elda Renedo,
Spoelstra Anne B.,
Bastiaansen Cees W. M.,
Broer Dirk J.,
Schenning Albertus P. H. J.
Publication year - 2015
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201500745
Subject(s) - materials science , self healing hydrogels , polymer , polymer network , interpenetrating polymer network , structural coloration , liquid crystal , coating , acrylic acid , acrylic polymer , composite material , cholesteric liquid crystal , chemical engineering , polymer chemistry , photonic crystal , copolymer , monomer , optoelectronics , engineering
Stimuli‐responsive materials based on interpenetrating liquid crystal‐hydrogel polymer networks are fabricated. These materials consist of a cholesteric liquid crystalline network that reflects color and an interwoven poly(acrylic acid) network that provides a humidity and pH response. The volume change in the cross‐linked hydrogel polymer results in a dimensional alteration in the cholesteric network as well, which, in turn, leads to a color change yielding a dual‐responsive photonic material. Furthermore a patterned coating having responsive and static interpenetrating polymer network areas is produced that changes both its surface topography and color.