Phase behavior of correlated random copolymers
| Autor: | Mark R. Wilson, Elena Patyukova, Erte Xi |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Work (thermodynamics)
Materials science Polymers and Plastics Degrees of freedom (physics and chemistry) FOS: Physical sciences 02 engineering and technology Method of moments (probability theory) Condensed Matter - Soft Condensed Matter Degree of polymerization 010402 general chemistry 01 natural sciences Article Inorganic Chemistry Phase (matter) Materials Chemistry Copolymer Statistical physics Condensed Matter - Statistical Mechanics Phase diagram Statistical Mechanics (cond-mat.stat-mech) Organic Chemistry 021001 nanoscience & nanotechnology 0104 chemical sciences Condensed Matter::Soft Condensed Matter Distribution function Soft Condensed Matter (cond-mat.soft) 0210 nano-technology |
| Zdroj: | Macromolecules Macromolecules, 2021, Vol.54(6), pp.2763-2773 [Peer Reviewed Journal] |
| DOI: | 10.48550/arxiv.2009.05281 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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