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Issue 29, 2007
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Self-assembly of chromogenic dyes—a new mechanism for humidity sensors

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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.

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

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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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