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Stimuli-Responsive Materials Based on Interpenetrating Polymer Liquid Crystal Hydrogels

Research output: Contribution to journalArticleScientificpeer-review

Details

Original languageEnglish
Pages (from-to)3314–3320
JournalAdvanced Functional Materials
Volume25
Issue number22
DOIs
Publication statusPublished - 2015
Externally publishedYes
Publication typeA1 Journal article-refereed

Abstract

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.

Keywords

  • Cholesteric liquid crystals, Hydrogels, Interpenetrating polymer networks, Photonic materials, Smart materials