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Physical aging and enthalpy relaxation of amorphous polyesters

✍ Scribed by James M. O'Reilly

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
115 KB
Volume
38
Category
Article
ISSN
0887-6266

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✦ Synopsis

The physical aging of three amorphous polyesters, polyethylene terephthalate, polyethylene napthalate, and polycyclohexane dimethanol terephthalate, was characterized by enthalpy relaxation via the Tool-Narayanaswamy methodology. Subtle differences in the activation energy, relaxation times, and distribution of the relaxation times are described. These data are compared to similar data for polycarbonates.

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