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Prog. Theor. Phys. Supplement No.126 (1997) pp. 103-106
A Temperature Modulated DSC Study of Glass Transition in Poly(ethylene terephthalate)
Akihiko Toda,*
Chiyoko Tomita and
Masamichi Hikosaka
Faculty of Integrated Arts and Sciences, Hiroshima University,
Higashi-Hiroshima 739, Japan
Abstract:
A dynamic heat capacity of poly(ethylene terephthalate) in the temperature
range of glass transition has been examined by a new technique of
temperature
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.
URL :
http://ptp.ipap.jp/link?PTPS/126/103/
DOI : 10.1143/PTPS.126.103
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