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Polymers, volume 13, issue 14, pages 2283

Phase Equilibrium and Interdiffusion in Blends of Polystyrene with Polyacrylates

Nikulova Uliana V ¹

Chalykh Anatoly E ¹

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Frumkin Institute of Physical Chemistry and Electrochemistry Russian Academy of Sciences (IPCE RAS), 31, Bld.4 Leninsky Prospect, 119071 Moscow, Russia |

Publication type: Journal Article

Publication date: 2021-07-12

Multidisciplinary Digital Publishing Institute (MDPI)

Journal: Polymers

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Impact factor: 5

ISSN: 20734360

DOI: 10.3390/polym13142283

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General Chemistry

Polymers and Plastics

Abstract

The solubility and interdiffusion of polystyrene (PS) with polymethyl acrylate (PMA), polyethyl acrylate (PEA), polybutyl acrylate (PBA), and polyethylhexyl acrylate (PEHA) have been studied by the optical interferometry method. Phase state diagrams are plotted. It is shown that they are characterized by the upper critical solution temperatures (UCST), which are localized in the temperature range above 450 K. Pair interaction parameters and their temperature dependences are determined and analyzed. Extrapolation of the temperature dependence of the interaction parameter was used to construct the dome of binodal curves and determine the spinodal curves in the framework of the Flory–Huggins theory. The diffusion coefficients of polystyrene into polyacrylates and polyacrylates into polystyrene are calculated. The dependences of the interdiffusion coefficients on the concentration, temperature, polystyrene molecular weight, and the number of carbons in the side chain of polyacrylate are analyzed. The numerical values of the interdiffusion coefficients of PS-1 into polyacrylates at 433 K change as −8.5 → −6.7 → −6.4 in the homologous series PMA → PEA → PBA. The coefficients of friction are calculated and the effect of change in the matrix structure on the diffusion of polystyrene in them is estimated.

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Nikulova U. V., Chalykh A. E. Phase Equilibrium and Interdiffusion in Blends of Polystyrene with Polyacrylates // Polymers. 2021. Vol. 13. No. 14. p. 2283.

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Nikulova U. V., Chalykh A. E. Phase Equilibrium and Interdiffusion in Blends of Polystyrene with Polyacrylates // Polymers. 2021. Vol. 13. No. 14. p. 2283.

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TY - JOUR

DO - 10.3390/polym13142283

UR - https://doi.org/10.3390%2Fpolym13142283

TI - Phase Equilibrium and Interdiffusion in Blends of Polystyrene with Polyacrylates

T2 - Polymers

AU - Chalykh, Anatoly E

AU - Nikulova, Uliana V

PY - 2021

DA - 2021/07/12 00:00:00

PB - Multidisciplinary Digital Publishing Institute (MDPI)

SP - 2283

IS - 14

VL - 13

SN - 2073-4360

ER -

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@article{2021_Nikulova,

author = {Anatoly E Chalykh and Uliana V Nikulova},

title = {Phase Equilibrium and Interdiffusion in Blends of Polystyrene with Polyacrylates},

journal = {Polymers},

year = {2021},

volume = {13},

publisher = {Multidisciplinary Digital Publishing Institute (MDPI)},

month = {jul},

url = {https://doi.org/10.3390%2Fpolym13142283},

number = {14},

pages = {2283},

doi = {10.3390/polym13142283}

}

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Nikulova, Uliana V., and Anatoly E Chalykh. “Phase Equilibrium and Interdiffusion in Blends of Polystyrene with Polyacrylates.” Polymers, vol. 13, no. 14, Jul. 2021, p. 2283. https://doi.org/10.3390%2Fpolym13142283.

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Publisher

Multidisciplinary Digital Publishing Institute (MDPI)

Journal

Polymers

Quartile SCImago

Quartile WOS

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ISSN

20734360 (Electronic)

Labs

Laboratory of Structural and Morphological research

Profiles

Nikulova, Uliana V