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Formation of fibrillar aggregates in concentrated solutions of rigid-chain amphiphilic macromolecules with fixed torsion and bend angles

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Abstract

The molecular-dynamics method is used to study solutions of amphiphilic macromolecules with a local helical structure. A deterioration in the solvent quality in concentrated solutions of these macromolecules leads to the formation of intermolecular fibrillar helix bundles with approximately the same lengths and aggregation numbers. The number of chains in a bundle is determined by parameters that characterize the local structure and is weakly dependent on the length of the macromolecule and the volume fraction of the polymer in the solution. In racemic mixtures of these macromolecules, a deterioration in the solvent quality leads to effective demixing; that is, the resultant fibrillar bundles generally contain macromolecules of exclusively the same chirality.

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Authors and Affiliations

  1. Faculty of Physics, Moscow State University, Moscow, 119991, Russia

    M. K. Glagolev & A. R. Khokhlov

  2. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, Moscow, 119991, Russia

    V. V. Vasilevskaya & A. R. Khokhlov

Authors
  1. M. K. Glagolev
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  2. V. V. Vasilevskaya
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  3. A. R. Khokhlov
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Corresponding author

Correspondence to M. K. Glagolev.

Additional information

Original Russian Text © M.K. Glagolev, V.V. Vasilevskaya, A.R. Khokhlov, 2011, published in Vysokomolekulyarnye Soedineniya, Ser. A, 2011, Vol. 53, No. 8, pp. 1421–1432.

This work was supported by the Federal Agency of Education, by the Division of Chemistry and Materials Sciences, Russian Academy of Sciences, under the program “Development and Study of Macromolecules and Macromolecular Structures of New Generations”; and by the Russian Foundation for Basic Research (project no. 11-03-00320-a).

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Glagolev, M.K., Vasilevskaya, V.V. & Khokhlov, A.R. Formation of fibrillar aggregates in concentrated solutions of rigid-chain amphiphilic macromolecules with fixed torsion and bend angles. Polym. Sci. Ser. A 53, 733–743 (2011). https://doi.org/10.1134/S0965545X11080037

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  • DOI: https://doi.org/10.1134/S0965545X11080037

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