Self-assembly of chromogenic dyes—a new mechanism for humidity sensors

Jill Kunzelman; Brent R. Crenshaw; Christoph Weder

doi:10.1039/B705880B

Self-assembly of chromogenic dyes—a new mechanism for humidity sensors

Jill Kunzelman,^a Brent R. Crenshaw^a and Christoph Weder*^a

* Corresponding authors

^a Department of Macromolecular Science and Engineering, Case Western Reserve University, 2100 Adelbert Road, Cleveland, USA
E-mail: christoph.weder@case.edu
Fax: (+1)216-368-4202

Abstract

The design, fabrication and characterization of a novel type of humidity sensing polymer are presented. The new material was prepared by incorporating a chromogenic, cyano-substituted oligo(p-phenylene vinylene) dye into a polyamide by quenching the blend from the melt. Exposure of these kinetically trapped, molecularly mixed blends to water plasticizes the amorphous phase and leads to aggregation of the dye molecules, concomitant with pronounced and irreversible changes of the material's absorption and fluorescence color.

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Publication details

The article was received on 18 Apr 2007, accepted on 22 May 2007 and first published on 29 May 2007

Article type: Communication

DOI: 10.1039/B705880B

Citation: J. Mater. Chem., 2007,17, 2989-2991

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Self-assembly of chromogenic dyes—a new mechanism for humidity sensors

J. Kunzelman, B. R. Crenshaw and C. Weder, J. Mater. Chem., 2007, 17, 2989
DOI: 10.1039/B705880B
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Journal of Materials Chemistry

Self-assembly of chromogenic dyes—a new mechanism for humidity sensors

Abstract

Supplementary files

Publication details

Self-assembly of chromogenic dyes—a new mechanism for humidity sensors

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