Prog. Theor. Phys. Supplement No.126 (1997) pp. 103-106
A Temperature Modulated DSC Study of Glass Transition in Poly(ethylene terephthalate)
Faculty of Integrated Arts and Sciences, Hiroshima University,
Higashi-Hiroshima 739, Japan
A dynamic heat capacity of poly(ethylene terephthalate) in the temperature
range of glass transition has been examined by a new technique of
modulated differential scanning calorimetry. The shift of glass transition
temperature caused by the desorption of water could be monitored by the
change in the dynamic heat capacity. Under quasi-isothermal condition,
the increase in the glass transition temperature causes the decrease in
the magnitude of the dynamic heat capacity and a negative or positive
change in the phase, depending on temperature.
DOI : 10.1143/PTPS.126.103
- P. S. Gill, S. R. Sauerbrunn and M. Reading, J. Therm. Anal. 40 (1993), 931.
- M. Reading, D. Elliott and V. L. Hill, J. Therm. Anal. 40 (1993), 949.
- M. Reading, A. Luget and R. Wilson, Thermochim. Acta 238 (1994), 295.
- B. Wunderlich, Y. Jin and A. Boller, Thermochim. Acta 238 (1994), 277.
- A. Boller, Y. Jin and B. Wunderlich, J. Therm. Anal. 42 (1994), 307.
- J. E. K. Schawe, Thermochim. Acta 261 (1995), 183.
- A. Hensel, J. Dobbertin, J. E. K. Schawe, A. Boller and C. Schick, J. Therm. Anal. 46 (1996), 935.
- S. A. Jabarin and E. A. Lofgren, Polym. Eng. Sci. 26 (1986), 620.