Physical aging response of syndiotactic poly(styrene)

Jorg Beckmann, Gregory B. McKenna, David H. Banks, Brian G. Landes, Robert A. Bubeck

Research output: Contribution to journalConference articlepeer-review


Creep experiments in uniaxial extension have been performed to explore the kinetics of the physical aging process in semi-crystalline sPS. Classical time-aging time superposition behavior was found for temperatures from 70 to 95 °C, with the shift rate μ decreasing as temperature increased. Virtually no aging was seen at 95 °C, the DSC determined TG. This behavior was atypical for a semi-crystalline polymer and reminiscent of the behavior of glassy amorphous thermoplastics. Some evidence for a separate crystalline aging mechanism which appears above TG is seen in experiments at 100 °C. Further investigation is required to confirm this.

Original languageEnglish
Pages (from-to)2272-2276
Number of pages5
JournalJournal of Engineering and Applied Science
StatePublished - 1996
EventProceedings of the 1996 54th Annual Technical Conference. Part 2 (of 3) - Indianapolis, IN, USA
Duration: May 5 1996May 10 1996


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