Abstract
AbstractChanges in temperature of the secondary β loss maximum of poly(ethylene glycol monomethacrylate) and poly(n‐propyl methacrylate) swollen by means of various low molecular weight substances over a wide concentration range were measured. Correlations were found among the temperature Tβ, concentration of the low molecular weight substances, and their molecular weights. Differences were established in the mechanism of function of monofunctional and difunctional low molecular weight substances. It has been found that the temperature Tβ of the swollen poly(ethylene glycol monomethacry–late) depends upon the molecular weight of a complex consisting of a molecule of the low molecular weight substance and one or two kinetic units partaking in the γ process of the dry polymer according to the mechanism of interaction suggested. The rise of the β process and changes in its temperature position were explained on the basis of change occurring in intermolecular interactions polymer–polymer and polymer–low molecular weight substance. Evidence was presented for a correlation between the γ process of dry and the β process of swollen polymers.
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