Universal size properties of a star-ring polymer structure in disordered environments

K. Haydukivska and V. Blavatska
Phys. Rev. E 97, 032502 – Published 5 March 2018

Abstract

We consider the complex polymer system, consisting of a ring polymer connected to the f1-branched starlike structure, in a good solvent in the presence of structural inhomogeneities. In particular cases f1=1 and f1=2, such a system restores the synthesized tadpole-shaped polystyrenes [Doi et al., Macromolecules 46, 1075 (2013)]. We assume that structural defects are correlated at large distances x according to a power law xa. Applying the direct polymer renormalization approach, we evaluate the universal size characteristics such as the ratio of the radii of gyration of star-ring and star topologies, and compare the effective sizes of single arms in complex structures and isolated polymers of the same total molecular weight. The nontrivial impact of disorder on these quantities is analyzed.

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  • Received 17 November 2017

DOI:https://doi.org/10.1103/PhysRevE.97.032502

©2018 American Physical Society

Physics Subject Headings (PhySH)

Polymers & Soft Matter

Authors & Affiliations

K. Haydukivska and V. Blavatska*

  • Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine, 79011 Lviv, Ukraine

  • *viktoria@icmp.lviv.ua

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Issue

Vol. 97, Iss. 3 — March 2018

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