Infrared studies of cryogenic transitions in poly(ethylene terephthalate) and polystyrene
Article first published online: 9 MAR 2003
Copyright © 1971 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 15, Issue 5, pages 1237–1245, May 1971
How to Cite
Huang, Y. S. and Koenig, J. L. (1971), Infrared studies of cryogenic transitions in poly(ethylene terephthalate) and polystyrene. J. Appl. Polym. Sci., 15: 1237–1245. doi: 10.1002/app.1971.070150518
- Issue published online: 9 MAR 2003
- Article first published online: 9 MAR 2003
- Manuscript Received: 29 DEC 1970
Infrared absorbance measurements as a function of temperature down to 13°K have been made on poly(ethylene terephthalate) and polystyrene. Transition temperatures are assigned to the temperatures where there are abrupt changes in the absorbance or integrated band intensities. Bands of known structural origin arising from either crystal-line or amorphous phases are studied to probe the structure basis and environment effect for each transition. Transitions are found around 50, 120, 180, and 220°K for PET and around 50° and 235°K for polystyrene.