Answers are grounded in this paper and cite their sources.
Thermoelastic (stress‐temperature) measurements in elongation were conducted on polyurethane elastomers of different chemical structure. Values of the temperature coefficient d In of the unperturbed dimensions of the network chains and the fraction f e /f of the stress, which is due to energetic effects, were calculated from measurements of unswollen samples. The elastomers displayed some deviations in the thermoelastic behaviour from that predicted by the theory. It is found that the extent of those deviations depends on the chemical structure and the contents of stiff and soft segments in the polyurethane rubbers studied.
No takes yet. Share an insight, caveat, or question.
W. Dzierża (1983) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: