Abstract
Two types of photochromic colorants of either spiropyran or fulgide were dispersed in thin films of blends of polymethyl methacrylate (PMMA) and styrene-butadiene-styrene copolymer (SBS) with various ratios. The thin films were illuminated with ultraviolet light (365 nm) under various temperatures. The photochromic response was monitored with a multichannel photodetector. The results show that the color form of spiropyran is more stable in polar PMMA and caused a blue shift in the absorption spectrum of merocyanine.
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Lin, JS., Chiu, HT. Photochromic Behavior of Spiropyran and Fulgide in Thin Films of Blends of PMMA and SBS. Journal of Polymer Research 10, 105–110 (2003). https://doi.org/10.1023/A:1024940921678
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DOI: https://doi.org/10.1023/A:1024940921678