Detection of polymer transitions by measurement of thermal properties
Article first published online: 9 MAR 2003
Copyright © 1966 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 10, Issue 11, pages 1673–1685, November 1966
How to Cite
Steere, R. C. (1966), Detection of polymer transitions by measurement of thermal properties. J. Appl. Polym. Sci., 10: 1673–1685. doi: 10.1002/app.1966.070101107
- Issue published online: 9 MAR 2003
- Article first published online: 9 MAR 2003
- Manuscript Received: 17 MAY 1966
Thermal diffusivity, thermal conductivity, and specific heat per unit volume were measured for the following polymers: poly(ethylene terephthalate), polytetrafluoroethylene, polycarbonate, polypropylene, and three poly(vinyl chloride) samples plasticized to different levels. First- and second-order transitions can be identified and located by the following features in the thermal property-temperature curves: discontinuities, sharp inflections, broad inflections, sharp maxima, broad maxima, and change in linear slope. The results for poly(vinyl chloride) indicate the possibility of the use of plasticizer to control the thermal insulation properties of polymers, both for steady-state and unsteady-state conduction.