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所属单位：材料科学与技术学院

发表刊物：JOURNAL OF CHEMICAL RESEARCH

关键字：photochromic naphthopyran derivatives fading rate absorption wavelength

摘要：Three novel types of naphthopyran derivatives containing alkoxyl and phenyl moieties, 13-butyl -6,11-dimethyl-3,3-diphenyl-3,13-dihydrobenzo[h] indeno[2,1-f]chromen-13-ol (NP), 13-butyl-3,3-bis(6-methoxy-[1,1'-biphenyl]-3-yl)-6,6-dimethyl-3,13-dihydrobenzo[h] indeno[2,1-f] chromen-13-ol (NP1) and 13-butyl-3,3-bis(6-methoxy-4'-naphthalenyl-[1,1'-biphenyl]-3-yl)-6,11-dimenthyl-3,13-dihydrobenz[h]indeno[2,1-f]chromen-13-ol (NP2), were synthesised and characterised. Measurements indicated that they possessed an excellent photochromic response, a rapid thermal bleaching rate and good fatigue resistance. Meanwhile, the UV maximum absorption wavelengths of NP1 (562 nm) and NP2 (597 nm) appeared bathochromically shifted compared with NP (536 nm). The bleaching rate of NP1 was found to be approximately twice that of NP. The results indicated that the UV maximum absorption wavelength and bleaching rate increase with increasing length of the phenyl side chain moieties. In PMMA film, the compounds showed almost the same photochromic properties in the solid state as in dichloromethane solution. The UV absorbance with high-contrast switching in solid film could be beneficial for practical applications.

ISSN号：1747-5198

是否译文：否

发表时间：2018-09-01

合写作者：Zhao, Man,Yang, Yanhua,Shen, Kecheng,Tao, Xian

通讯作者：沈应中