Surface-Mediated Modification of the Polymerization Process of Diacetylene LB Films by Photochromic Azobenzene Monolayers

Takahiro Seki Research Laboratory of Resources Utilization, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226, Japan

Keisuke Tanaka Research Laboratory of Resources Utilization, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226, Japan

Kunihiro Ichimura Research Laboratory of Resources Utilization, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226, Japan

Abstract

Photopolymerization of a diacetylene Langmuir-Blodgett (LB) film was achieved on an azobenzene (Az) containing monolayer. The color of the polydiacetylene obtained was found to be dependent on the photoisomerized form of the Az monolayer beneath the diacetylene LB film. The phenomenon observed here can be a new example of the photochemical molecular switching mediated by surface photochromism.

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Surface-Mediated Modification of the Polymerization Process of Diacetylene LB Films by Photochromic Azobenzene Monolayers

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Surface-Mediated Modification of the Polymerization Process of Diacetylene LB Films by Photochromic Azobenzene Monolayers

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