Liquid-crystalline carbosilane dendrimers of different molecular architecture with photochromic mesogenic and aliphatic terminal groups |
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| Authors: | A I Lysachkov N I Boiko E A Rebrov A M Muzafarov V P Shibaev |
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| Institution: | (1) Department of Chemistry, M. V. Lomonosov Moscow State University, 1 Leninskie Gory, 119992 Moscow, Russian Federation;(2) N. S. Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 70 ul. Profsoyuznaya, 119333 Moscow, Russian Federation |
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| Abstract: | Second-generation (G-2) liquid-crystalline carbosilane block and statistical dendrimers with aliphatic (decyl) and photochromic
(azobenzene-containing) mesogenic terminal groups and a G-2 homo-dendrimer containing the same mesogenic terminal groups were
synthesized for the first time. The influence of dendritic architecture on the phase behavior of the dendrimers and on photoinduced
Z-E-isomerization of the azobenzene fragments in mesogenic terminal groups in dendrimer solutions are discussed.
Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 12, pp. 2325–2331, December, 2007. |
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| Keywords: | dendrimer liquid-crystalline state smectic mesophase block codendrimer statistical codendrimer photochromic mesogenic groups photochemistry isomerization |
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