Determination of Compatibility of Polymer Systems, Skep, Pu, Khkpe and Chemical Features of Their Mixtures.

Abstract

ISRA (India) = 4.971 ISI (Dubai, UAE) = 0.829 GIF (Australia) = 0.564 JIF = 1.500 SIS (USA) = 0.912 РИНЦ (Russia) = 0.126 ESJI (KZ) = 8.716 SJIF (Morocco) = 5.667 ICV (Poland) = 6.630 PIF (India) = 1.940 IBI (India) = 4.260 OAJI (USA) =

Thermodynamics of solvent sorption by layers of carbon-chain polymers in damping rubber blankets

“…Since Н Е > 0 for all sorbates, the deviations from ideal solutions are apparently positive in the studied systems (polymer-sorbate), and the solubility (thermodynamic compatibility) of sorbates in the polymer is expected to increase with increasing temperature. This is in agreenent with the results obtained in [19], where 'non-ideality' of the studied systems was also reported.…”

“…Numerous theoretical and experimental studies have used these parameters for the interaction of heterochain and carbon-chain copolymers of linear and network macromolecular structure with liquid media. It is known [19][20][21][22][23] that the sorption of the liquid by macromolecular polymers is due to the superposition of two simultaneous processes. These are the solvent diffusion into the polymer matrix and a three-dimensional deformation of the polymer matrix caused by liquid sorption and increased volume.…”

“…In addition, the Flory-Huggins parameters can be determined from the chromatographic data [17][18][19]. According to the Flory-Huggins theory, the deviation of the polymer-solvent system from ideality, which is characterized by the solvent activity coefficient γ 1 , is observed as a consequence of differences in molecular sizes and unequal intensity of the intermolecular interactions:…”