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Physical aging of bisphenol A polycarbonate

✍ Scribed by S. Orreindy; A. Rincón G.

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
104 KB
Volume
74
Category
Article
ISSN
0021-8995

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✦ Synopsis

The physical aging of bisphenol A polycarbonate was studied using the differential scanning calorimetry technique. Cowie and Ferguson's model and Williams-Watts function were used to analyze the data. It is confirmed that the relation ⌬H ϱ (T a ) ϭ ⌬C p (T g Ϫ T a ), where ⌬H ϱ (T a ) is the value of the aging enthalpy for t ϭ ϱ, T a the aging temperature, and ⌬C p the difference in the specific heat above and below the glass transition temperature (T g ), can be used to study quantitatively the physical aging of bisphenol A polycarbonate.

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