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New polyarylates with nonlinear T-shaped mesogenic groups and variable hinge heteroatoms

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Abstract

The synthesis and comparative study of mesomorphic properties of aromatic polyesters containing the nonlinear T-shaped mesogenic sequences based on 1,4-dihydroxy-2-benzoylbenzene and hinge heteroatoms—oxygen (polyester I) or sulfur (polyester II)—have been performed. Polyester II lacks liquid-crystalline properties, in contrast to the oxygen-containing analog I demonstrating the mesomorphic behavior. In the case of polyester II samples, there is a large scatter in dynamooptical characteristics estimated in dilute N-methylpyrrolidone solutions. This behavior of polyester II is apparently associated with restriction of intramolecular mobility because of interaction between valence shells of sulfur atoms giving rise to bridge S···S bonds.

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Authors and Affiliations

  1. Institute of Macromolecular Compounds, Russian Academy of Sciences, Bol’shoi pr. 31, St. Petersburg, 199004, Russia

    M. N. Bol’shakov, L. N. Andreeva, S. V. Bushin, V. V. Shamanin & S. S. Skorokhodov

  2. St. Petersburg Technological Institute (Technical University), Moskovskii pr. 26, St. Petersburg, 190013, Russia

    L. I. Rudaya & N. V. Klimova

Authors
  1. M. N. Bol’shakov
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  2. L. I. Rudaya
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  3. N. V. Klimova
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  4. L. N. Andreeva
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  5. S. V. Bushin
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  6. V. V. Shamanin
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  7. S. S. Skorokhodov
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Corresponding author

Correspondence to L. N. Andreeva.

Additional information

Original Russian Text © M.N. Bol’shakov, L.I. Rudaya, N.V. Klimova, L.N. Andreeva, S.V. Bushin, V.V. Shamanin, S.S. Skorokhodov, 2008, published in Vysokomolekulyarnye Soedineniya, Ser. A, 2008, Vol. 50, No. 2, pp. 245–251.

This work was supported by the Russian Foundation for Basic Research (project no. 04-03-32951a) and the program of Basic Research of the Division of Chemistry and Materials Sciences, Russian Academy of Sciences, “Creation and Study of Macromolecules and Macromolecular Structures of New Generations.”

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Bol’shakov, M.N., Rudaya, L.I., Klimova, N.V. et al. New polyarylates with nonlinear T-shaped mesogenic groups and variable hinge heteroatoms. Polym. Sci. Ser. A 50, 142–146 (2008). https://doi.org/10.1007/s11498-008-2007-x

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  • DOI: https://doi.org/10.1007/s11498-008-2007-x

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