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Photochromic Behavior in the Molecular Glass of 4,4′,4″-Tris(3-methylphenylphenylamino)triphenylamine

1996; Oxford University Press; Volume: 25; Issue: 8 Linguagem: Inglês

10.1246/cl.1996.701

1348-0715

Hideyuki Nakano, Keiichi Akamatsu, Kazuyuki Moriwaki, Yasuhiko Shirota,

Liquid Crystal Research Advancements

Abstract For the purpose of gaining information on the microstructure of molecular glasses, photochromic behavior of 4-dimethylaminoazobenzene (DAAB) in the molecular glass of 4,4′,4″-tris(3-methylphenylphenylamino)triphenylamine (m-MTDATA) was studied in comparison with that in a polystyrene matrix and in a benzene solution. The results strongly suggest that the local free volume in the molecular glass of m-MTDATA is smaller than that in the polystyrene glass.