The glass transition temperature versus the fictive temperature

Prashanth Badrinarayanan, Wei Zheng, Sindee L. Simon

Research output: Contribution to conferencePaperpeer-review

Abstract

It is well known that both the glass transition temperature (T g) and the limiting fictive temperature (T f') depend on the cooling rate. However, a comparison of the values of T g and T f' as a function of cooling rate has not previously been performed. In this work we have performed this comparison for a polystyrene sample using both capillary dilatometry and differential scanning calorimetry. The results from both techniques indicate that both T g and T f' have almost the same dependence on the cooling rate. However, T f' is systematically lower than T g presumably due to relaxation that occurs on heating.

Original languageEnglish
Pages1669-1673
Number of pages5
StatePublished - 2006
EventSociety of Plastics Engineers Annual Technical Conference 2006, ANTEC 2006 - Charlotte, NC, United States
Duration: May 7 2006May 11 2006

Conference

ConferenceSociety of Plastics Engineers Annual Technical Conference 2006, ANTEC 2006
CountryUnited States
CityCharlotte, NC
Period05/7/0605/11/06

Keywords

  • Capillary dilatometer
  • DSC
  • Fictive temperature
  • Glass transition temperature

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