Investigation of the thermophysical properties of polymers by the temperature wave technique

摘要: The technique of temperature waves to measure the complex thermophysical characteristics materials has been proposed. relations for moduli and arguments these case plane have calculated. dependences polyvinylacetate (PVAc) at different frequencies also its vibrational configurational heat capacities determined. It shown that capacity PVAc in region softening grows sharply goes through a peak. segmental mobility found affect transfer polymer an ambivalent way causing both decrease increase thermal conductivity.