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Issue 23, 2011
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Mechanochromic polymer blends

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Abstract

Mechanochromic polymer blends, i.e.polymer blends characterised by optical responsiveness to mechanical stimuli, have evoked major interest and experienced significant progress in recent years. Various examples are reported of chromogenic materials composed of a functional dye covalently linked to the polymer chains or physically dispersed in the continuous macromolecular matrix, the latter appears to be a more sustainable route for the industrial scale-up of these materials. This feature article examines the properties and performances of various mechanochromic materials prepared by using different thermoplastic polymers with non-covalently incorporated aggregachromic dyes. More specifically, the general mechanism underlying the optical phenomenon is introduced and the different approaches used to obtain chromogenic materials are presented and discussed considering both dye features and polymer characteristics. The combination of the properties of the blend components can often result in drastic differences in the material chromogenic responsiveness. The article concludes commenting and discussing the application of these kind of polymer devices as a new type of advanced materials and the perspective thereof.

Graphical abstract: Mechanochromic polymer blends

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Publication details

The article was received on 26 Oct 2010, accepted on 12 Jan 2011 and first published on 15 Feb 2011


Article type: Feature Article
DOI: 10.1039/C0JM03653F
J. Mater. Chem., 2011,21, 8282-8291

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    Mechanochromic polymer blends

    A. Pucci and G. Ruggeri, J. Mater. Chem., 2011, 21, 8282
    DOI: 10.1039/C0JM03653F

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