Photocontraction of Liquid Spiropyran-Merocyanine Films
- 19 October 1984
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 226 (4672) , 341-343
- https://doi.org/10.1126/science.226.4672.341
Abstract
Amorphous films of a photochromic spiropyran containing a mesogenic group melt, when exposed to heat together with irradiation, to yield a red fluid. This fluid contains aggregates of merocyanine molecules and exhibits marked contraction under light illumination. The mechanism of the photocontraction is dependent upon a specialized microstructure, which may be termed a "quasi-liquid."Keywords
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