Conformational approach to determining the polarization of polyethylene oxide during melt-crystal transitions in a non-uniform temperature field

Abstract

In connection with the widespread use of polyethylene oxide (PEO) in modern technologies, studies of the relationship between its supramolecular structure and properties by modeling methods have recently intensified. Usually, when modeling the thermopolarized effect, the supramolecular structure of flexible-chain polymers is represented by a set of linear one-dimensional crystals. This approach does not take into account the conformational features of the structure of polymers. Using the example of (PEO), the article substantiates a method for calculating the influence of the conformations of a polymer molecule on the temperature dependence of the averaged square of the dipole moment of its molecules. The problem solved in this work, as well as the proposed solutions and approaches, reflect the general fundamental problem of the thermodynamic stability of multicomponent systems in external fields.