| 简介 |
A rewritable photomemory material obtained by combining a polymer possessing a carbonyl group in a main chain or a side chain with a function-imparting component such as a compound which produces rare earth ions is disclosed. The magnitude of fluorescence level of the rewritable phtomemory material can be intensified by light irradiation, while an initial state can be recovered by a heat treatment. Fine particle materials imparted with functions such as fluorescence characteristics, magnetic characteristics, coloration or non-linear characteristics are also disclosed, and particularly a fine particle material imparted with heat resistance through combination with polyimide is disclosed. |
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