Issue 38, 2012
From the journal:

Chemical Communications

Irreversible visual sensing of humidity using a cholesteric liquid crystal†‡

Abhijit Saha,a   Yoko Tanaka,a   Yang Han,a   Cees M. W. Bastiaansen,b   Dirk J. Broerb  and  Rint P. Sijbesma*a  

* Corresponding authors

a Laboratory for Macromolecular and Organic Chemistry, Eindhoven University of Technology, P.O. Box 513, Eindhoven, The Netherlands
E-mail: r.p.sijbesma@tue.nl

b Functional Materials and Devices, Eindhoven University of Technology, P.O. Box 513, Eindhoven, The Netherlands

Abstract

Irreversible optical sensing of humidity by a doped cholesteric liquid crystal is achieved by using a thin film of nematic host E7 with a binaphthylorthosilicate ester as dopant (guest). The film changes its color from blue (to green to orange to red) to colorless when exposed to humidity as the dopant is hydrolyzed.

Graphical abstract: Irreversible visual sensing of humidity using a cholesteric liquid crystal

  • This article is part of the themed collection: Chirality
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Article information

DOI
https://doi.org/10.1039/C2CC16934G
Article type
Communication
Submitted
08 Nov 2011
Accepted
15 Mar 2012
First published
29 Mar 2012

Chem. Commun., 2012,48, 4579-4581

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Irreversible visual sensing of humidity using a cholesteric liquid crystal

A. Saha, Y. Tanaka, Y. Han, C. M. W. Bastiaansen, D. J. Broer and R. P. Sijbesma, Chem. Commun., 2012, 48, 4579 DOI: 10.1039/C2CC16934G

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