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Secondary structure of globules of copolymers consisting of amphiphilic and hydrophilic units: Effect of potential range

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Abstract

The relation of the coil-globule transition in macromolecules consisting of amphiphilic and hydrophilic monomer units to the radius of action of the interaction potential is investigated by the method of computer-assisted experiments. The internal structure of globules formed by such macromolecules is significantly dependent on the radius of action of the potential. In the case of the long-range potential, the globule is characterized by the blob structure, while in the case of the short-range potential, a quasi-helical structure forms. In this structure, the skeleton of a macromolecule forms a helical turn, and the direction of twisting may vary from one turn to another. The coil-globule transition in such macromolecules proceeds through formation of the necklace conformation from quasi-helical micelle beads. For sufficiently long macromolecules, the dimensions of such globules are linearly dependent on the degree of polymerization.

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Authors and Affiliations

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

    V. A. Ermilov, V. V. Vasilevskaya & A. R. Khokhlov

Authors
  1. V. A. Ermilov
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  2. V. V. Vasilevskaya
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  3. A. R. Khokhlov
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Corresponding author

Correspondence to V. V. Vasilevskaya.

Additional information

Original Russian Text © V.A. Ermilov, V.V. Vasilevskaya, A.R. Khokhlov, 2010, published in Vysokomolekulyarnye Soedineniya, Ser. A, 2010, Vol. 52, No. 3, pp. 466–477.

This work was supported by the Division of Chemistry and Materials Sciences, Russian Academy of Sciences, under the program Creation and Study of Macromolecules and Macromolecular Structures of New Generations and by the Global Centers of Excellence Program of the Ministry of Education of Japan.

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Ermilov, V.A., Vasilevskaya, V.V. & Khokhlov, A.R. Secondary structure of globules of copolymers consisting of amphiphilic and hydrophilic units: Effect of potential range. Polym. Sci. Ser. A 52, 317–327 (2010). https://doi.org/10.1134/S0965545X10030144

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  • DOI: https://doi.org/10.1134/S0965545X10030144

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