1D03 アゾベンゼンを主鎖に含むポリイミドの光誘起傾斜配向 : 無偏光斜め照射のみ(2004年日本液晶学会討論会)

概要

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We have investigated the orientation of polyimide (Azo-PI) molecules containing azobenzene in the backbone structure induced by single oblique angle irradiation with unpolarized light (UP-light). The UP-light irradiation was performed at the incidence angle of 45° on the 16 nm thick film of polyamic (Azo-PAA) acid that is the precursor of Azo-PI. The UP-1ight exposure was varied up to 882 J/cm^2. After thermal imidization of the photo-treated film, the orientational distribution of the Azo-PI backbone structure was determined using infrared absorption spectroscopy. We found that the backbone structure rotates toward the minimum electric field direction of the UP-1ight in the Azo-PAA film during the UP-light irradiation.
日本液晶学会の論文
2004-09-26