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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.

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

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