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Phase behavior of correlated random copolymers

Patyukova, Elena; Xi, Erte; Wilson, Mark

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Elena Patyukova

Erte Xi


In this work, we calculate Flory-Huggins phase diagrams for correlated random copolymers. We achieve it in two steps. At first, we derive a distribution function of two-letter A, B copolymer chains depending on the fraction of A-segments and ABduplets. Then we use the method of moments, which was developed by Sollich and Cates [Sollich, P.; Cates, M. E.; Phys. Rev. Lett. 1998, 80, 1365–1368] for polydisperse systems, to reduce the number of degrees of freedom of the computational problem and calculate phase diagrams. We explore how the location of transition points and composition of coexisting phases depends on fractions of A-segments and AB-duplets in a sequence and the degree of polymerization. The proposed approach allows taking into account fractionation, which was shown to affect the appearance of phase diagrams of statistical copolymers.


Patyukova, E., Xi, E., & Wilson, M. (2021). Phase behavior of correlated random copolymers. Macromolecules, 54(6), 2763-2773.

Journal Article Type Article
Acceptance Date Feb 22, 2021
Online Publication Date Mar 10, 2021
Publication Date Mar 23, 2021
Deposit Date Mar 4, 2021
Publicly Available Date Dec 15, 2021
Journal Macromolecules
Print ISSN 0024-9297
Electronic ISSN 1520-5835
Publisher American Chemical Society
Peer Reviewed Peer Reviewed
Volume 54
Issue 6
Pages 2763-2773


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