Photoinduced micropatterning by polymorphic crystallization of a photochromic diarylethene in a polymer film
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Updated: Jun 13, 2026

10:35
Novel Techniques for Observing Structural Dynamics of Photoresponsive Liquid Crystals
Published on: May 29, 2018
Daichi Kitagawa1, Itsuka Yamashita, Seiya Kobatake
1Department of Applied Chemistry, Graduate School of Engineering, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan.
Abstract:
A photochromic diarylethene was found to crystallize rapidly from the amorphous state in poly(methyl methacrylate) by heating at 130 degrees C. The diarylethene amorphous film was successfully patterned to form microcrystals upon ultraviolet (UV) light irradiation through a photomask, showing a high resolution as good as approximately 4 microm under optimal conditions.

