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XIAOLI YANG1,2, BAOJIE YANG1, YUANYUAN LIU1, HONGJUN ZHU1,*
A series of 1,3,3 trimethylspiro[2H] indol 2,3 ′′--[ naphtho[2,1 b][1,4]oxazine derivatives (spirooxazine) w ere synthesized using the microwave method. Their photochromic behaviors in styrene butadiene styrene copolymer (SBS), polycarbonate (PC), and polymethylmethacrylate (PMMA) were investigated. Re sults show t hat the colored form of spirooxazine is more stable in polar PMMA and cause a blue shift in the absorption spectrum of merocyanine. Furthermore, a broad thermal relaxation time range was obtained, from 129 s to 1724s in PMMA, at 20 °C) through a structur al modification of 6 heterocycle and 9 acyloxy. These results present a new strategy for designing photochromic molecules that feature different and acceptable relaxation times..
Spirooxazine, Photochromism, Polymer matrices, Thermal decoloration Fatigue resistance.
XIAOLI YANG, BAOJIE YANG, YUANYUAN LIU, HONGJUN ZHU, Microwave-assisted synthesis of novel spirooxazines and their photochromic behaviors in polymer matrices, Optoelectronics and Advanced Materials - Rapid Communications, 6, 11-12, November-December 2012, pp.1146-1152 (2012).
Submitted at: June 11, 2012
Accepted at: Oct. 30, 2012
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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