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Structural kinetics of the formation of hyperbranched polymers via condensation polymerization in the presence of the substitution effect

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Abstract

Kinetic features of the formation of hyperbranched polymers via the condensation polymerization of AB2 monomers are analyzed with regard to the substitution effect. It is shown that the number-average degree of polymerization grows in proportion to the conversion, regardless of the ratio between the kinetic constants. The substitution effect affects the degree of branching and the molecular-mass distribution, the latter being considerably narrower than that for the common polycondensation process: The lower the ratio k 2/k 1 between the first and second addition constants, the lower the degree of branching DB and the polydispersity index P w/P n.

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Authors and Affiliations

  1. Institute of Problems of Chemical Physics, Russian Academy of Sciences, pr. Akademika Semenova 1, Chernogolovka, Moscow oblast, 142432, Russia

    T. F. Irzhak & V. I. Irzhak

  2. Kazan National Research Technological University, ul. Karla Marksa 68, Kazan, 420015, Tatarstan, Russia

    T. R. Deberdeev & V. I. Irzhak

Authors
  1. T. F. Irzhak
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  2. T. R. Deberdeev
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  3. V. I. Irzhak
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Correspondence to V. I. Irzhak.

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Original Russian Text © T.F. Irzhak, T.R. Deberdeev, V.I. Irzhak, 2015, published in Russian in Vysokomolekulyarnye Soedineniya, Ser. B, 2015, Vol. 57, No. 1, pp. 62–68.

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Irzhak, T.F., Deberdeev, T.R. & Irzhak, V.I. Structural kinetics of the formation of hyperbranched polymers via condensation polymerization in the presence of the substitution effect. Polym. Sci. Ser. B 57, 55–60 (2015). https://doi.org/10.1134/S1560090415010066

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  • DOI: https://doi.org/10.1134/S1560090415010066

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