Abstract
A series of hydrogen-bonded blends of nematic liquid-crystalline copolymers with a low-molecular photochromic dopant and their covalent analogs were prepared. Their phase behavior and photooptical properties were studied. The introduction of a dopant increases considerably the isotropization temperatures of the systems. A comparative study of photoorientation processes in the blends and copolymers analogous to them was carried out. The induced dichroism in covalent systems is more pronounced than in similar hydrogen-bonded blends.
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Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 2, pp. 322–328, February, 2008.
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Obraztsov, A.A., Bobrovsky, A.Y. & Shibaev, V.P. Photoorientation in hydrogen-bonded blends of liquid-crystalline polymers with a low-molecular photochromic dopant. Russ Chem Bull 57, 330–336 (2008). https://doi.org/10.1007/s11172-008-0051-6
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DOI: https://doi.org/10.1007/s11172-008-0051-6