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Comment on the matrix effect on photochromism of spiropyrans in bulk polymers

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Summary

The photochromic behaviour of spiropyran derivatives dissolved in a polymer matrix or incorporated in the backbone of bulk polymers is discussed. The deviations from first order kinetics of the thermal decolouration in glassy specimen are attributed to both influences of local free volume and of different merocyanine isomers during the decolouration reaction. The application of the free volume theory in terms of a WLF-equation is proven for the first time in these systems and conclusions are drawn on chain segmental mobility.

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  1. Institut für Makromolekulare Chemie der Albert-Ludwigs-Universität, Hermann-Staudinger-Haus, Stefan-Meier-Straße 31, 7800, Freiburg i.Br., Federal Republic of Germany

    Claus D. Eisenbach

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  1. Claus D. Eisenbach
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Eisenbach, C.D. Comment on the matrix effect on photochromism of spiropyrans in bulk polymers. Polymer Bulletin 2, 169–176 (1980). https://doi.org/10.1007/BF00254580

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  • DOI: https://doi.org/10.1007/BF00254580

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