Bisthienylethene (BTE)–based photochromic switches exhibit high resistivity, rapid response, and thermal and photo-stability. The synthesis of the BTE derivative shown in the Figure, a new kind of structure for photochromic polymers, is reported. The switching properties—including photo-fatigue resistance—of 1 and its copolymer with methyl methacrylate are detailed.
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Tian et al. (2000) studied this question.