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A Mechanism for Supercooling in Organic Liquids

Published online by Cambridge University Press:  21 February 2011

Paul E. Thoma
Paul E. Thoma*
Affiliation:
Johnson Controls, Inc., Central Research, P. O. Box 591, Milwaukee, WI 53201-0591 USA
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Abstract

In this investigation, a mechanism for supercooling in organic liquids is formulated. By comparing the melting temperature and spontaneous freezing temperature of the chemicals evaluated with their molecular characteristics, the factors promoting supercooling are developed. The results obtained indicate that the following molecular characteristics promote supercooling in organic liquids:

sharing of electrons between the atoms of a molecule;

A three-dimensional chemical structure;

A permanent, three-dimensional, and partially charged pocket within the chemical structure;

A partially charged projection having a charge opposite that of the pocket and located on the side of the molecule opposite that of the pocket.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 398: Symposium C – Thermodynamics and Kinetics of Phase Transformations , 1995 , 87
Copyright
Copyright © Materials Research Society 1998

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References

REFERENCES

1 Hatakeyama, T. and Quinn, F.X., Thermal Analysis - Fundamentals and Applications to Polymer Science. John Wiley & Sons, Chichester, England, 1994, pp. 94–95.Google Scholar