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Adjustment of Solid-Solid Phase Transition Temperature of Polyalcohols by the Use of Dopants*

Published online by Cambridge University Press:  06 March 2019

D. Chandra ,
C. S. Barrett  and
D. K. Benson
D. Chandra
Affiliation:
University of Denver, DenverCO 80208
C. S. Barrett
Affiliation:
University of Denver, DenverCO 80208
D. K. Benson
Affiliation:
Solar Energy Research Institute, GoldenCO 80401
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Abstract

The transition temperatures of solid-solid phase changes in selected polyalcohols, “plastic crystals,” can be adjusted by using interstitial and substitutional dopants. An investigation is under way of the structural changes in these during heating and cooling, and of the thermodynamic properties such as the transition, temperatures and enthalpy changes, as a function of the percent of dopant. The purpose of the investigation is to find and evaluate materials having potential value In thermal storage applications. Dopants for pentaerythritol discussed in this report are trimethylolpropane (TMP), ammonia, boron trifluoride, pentaglycerine (PG) and neopentylglycol (NPG).

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 29: Thirty-Fourth Annual Conference on Applications of X-ray Analysis, August 5-9, 1985 , 1985 , pp. 305 - 313
Copyright
Copyright © International Centre for Diffraction Data 1985

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Footnotes

*

Work supported by contract No. DEWX03-84SF12205 of the Dept, of Energy, San Francisco Operations Office, Oakland, CA.

References

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