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Effect of recrystallization on the oxidative stability of poly(butylene terephthalate)

Published online by Cambridge University Press:  31 January 2011

Antonio Motori ,
Gian Carlo Montanari ,
Andrea Saccani  and
Steve Giannoni
Antonio Motori
Affiliation:
University of Bologna, Bologna, Italy
Gian Carlo Montanari
Affiliation:
University of Bologna, Bologna, Italy
Andrea Saccani
Affiliation:
University of Bologna, Bologna, Italy
Steve Giannoni
Affiliation:
Underwriters Laboratories, New York
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Extract

The oxidative stability of poly(butylene terephthalate) was investigated over the range 175 to 220 °C by isothermal differential calorimetry. It is shown that this property is affected by a fast recrystallization process, which takes place between 200 and 220 °C, with a maximum around 208 °C. In fact, recrystallization produces an increase of the crystallinity degree of the polymer, which enhances its resistance to oxidation, as proven by the longer oxidation times detected.

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Articles
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Journal of Materials Research , Volume 15 , Issue 1 , January 2000 , pp. 243 - 247
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Copyright © Materials Research Society 2000

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