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2004•Chemistry LettersRequires access

Fabrication and Efficient Photochromism of the Mixed Langmuir–Blodgett Films of a Water-miscible Azobenzene Amphiphile and Long-chain Alkylammoniums

Reiko Azumi, Keiko Kakiuchi, Mutsuyoshi Matsumoto

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Abstract

Abstract The fabrication and efficient photochromism of the mixed Langmuir–Blodgett films of a water-miscible azobenzene amphiphile and long-chain alkylammoniums are demonstrated. Long-chain alkylammonium can serve as a counterion to stabilize the anionic azobenzene amphiphile on the water surface, and also as a spacer around the azobenzene amphiphile to prevent the aggregation, enabling the efficient photoisomerization of azobenzene.

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Abstract The fabrication and efficient photochromism of the mixed Langmuir–Blodgett films of a water-miscible azobenzene amphiphile and long-chain alkylammoniums are demonstrated. Long-chain alkylammonium can serve as a counterion to stabilize the anionic azobenzene amphiphile on the water surface, and also as a spacer around the azobenzene amphiphile to prevent the aggregation, enabling the efficient photoisomerization of azobenzene.

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Available abstract

Abstract The fabrication and efficient photochromism of the mixed Langmuir–Blodgett films of a water-miscible azobenzene amphiphile and long-chain alkylammoniums are demonstrated. Long-chain alkylammonium can serve as a counterion to stabilize the anionic azobenzene amphiphile on the water surface, and also as a spacer around the azobenzene amphiphile to prevent the aggregation, enabling the efficient photoisomerization of azobenzene.

Key concepts: Azobenzene, Chemistry, Photochromism, Amphiphile, Langmuir–Blodgett film, Chain (unit), Fabrication, Photochemistry

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Fabrication and Efficient Photochromism of the Mixed Langmuir–Blodgett Films of a Water-miscible Azobenzene Amphiphile and Long-chain Alkylammoniums — Research Paper | ScholarLens