Dependence of relaxation times of glassy polymers on their specific volume
article
This paper deals with the volume relaxation and simultaneous changes in mechanical properties that occur after complicated thermal histories. The histories were chosen such that, at the final measuring temperature, the specific volume v passes through a maximum with increasing time. It is shown that, for polystyrene, poly(vinyl chloride) and polycarbonate, the mechanical creep properties change as if the position on the log time scale of the creep curve is uniquely determined by the momentary value of v. Thus, a maximum in the volume relaxation curve implies that the creep curve first shifts to the left and later to the right.
TNO Identifier
230688
ISSN
00323861
Source
Polymer, 29(8), pp. 1347-1353.
Pages
1347-1353
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