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| - Azopyridine Side Chain Polymers: An Efficient Way ToPrepare Photoactive Liquid Crystalline Materialsthrough Self-Assembly
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| - An amorphous azopyridine side chain polymer can be converted into different liquid crystalline polymers through the complexation with a series of commercially available aliphatic and aromatic carboxylic acids. This work shows that azopyridine polymers combine the photoactivity of azobenzene polymers with the self-assembly capability provided by the pyridyl group.
- A new strategy for the preparation of azo-containing liquid crystalline polymers ispresented. A polymethacrylate bearing an azopyridine group in the side chain wassynthesized for the first time. The amorphous azopyridine polymer can easily be convertedinto liquid crystalline polymers through self-assembly with a series of commercially available,aliphatic and aromatic carboxylic acids including the acetic acid. The measurement ofphotoinduced birefringence reveals that these complexes may have very different behaviors.The study thus shows that azopyridine side chain polymers combine the photoactivity ofazobenzene polymers with the capability of self-assembly promoted by the pyridyl group,which offers a new and robust approach toward the preparation and exploitation ofphotoactive liquid crystalline materials.
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