This article is cited in 4 papers

Peculiarities of phase transformations of polymer solutions in deformable porous matrices

A. V. Shishulin, V. B. Fedoseev

G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Nizhnii Novgorod

Abstract: Methods of equilibrium chemical thermodynamics have been used to simulate laws of the influence of geometric factors (pore shape and volume) on the phase equilibria is stratifying polymer solutions in porous matrices. Using the example of the phase separation in a liquid polybutadiene–polystyrene system, it is established that deformation of the porous matrix determining the geometric characteristics of pores can be used to control the mutual solubilities of components and the volumes and thermodynamic stability of coexisting equilibrium phases. Significant deformations of the matrix lead to suppression of the phase separation in pores and make any solution compositions possible (up to equimolar mixtures).

Keywords: porous materials, phase transformations, core–shell structure, deformation, phase separation.

Received: 05.04.2019
Revised: 11.04.2019
Accepted: 11.04.2019

DOI: 10.21883/PJTF.2019.14.48014.17826

 English version: Technical Physics Letters, 2019, 45:7, 697–699

Bibliographic databases:

•