Abstract
The absolute liquid heat capacity of poly(α-methyl styrene) was determined at temperatures far below Tg and TK in previous work by use of pentamer/polymer athermal mixtures. Here the data is compared to data compiled by Wunderlich and coworkers from 0 K to above Tg in order to obtain the absolute entropy for the polymer in its equilibrium state at temperatures as much as 180 K below the glass temperature or 130 K below the Kauzmann temperature. The results provide no evidence of a second-order transition or of a smeared transition in the entropy. In addition, we find no evidence that the entropy would become negative at a finite temperature.
Original language | English |
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Pages (from-to) | 672-675 |
Number of pages | 4 |
Journal | Journal of Non-Crystalline Solids |
Volume | 355 |
Issue number | 10-12 |
DOIs | |
State | Published - May 1 2009 |
Keywords
- Calorimetry
- Glass transition
- Polymers and organics