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Dependence of Linear Isobaric Thermal Expansivity of Polymers on Their Flexibility

Samir Aouadi1, Witold Brostow1, Nora A. Hamad1,2
Affiliation: 
1 Department of Materials Science and Engineering, University of North Texas, 3940 North Elm Street, Denton, TX 76207, USA 2 Department of Organic Chemistry, Faculty of Science, Menoufia University, Shebine El-Koam00123, Egypt wkbrostow@gmail.com
DOI: 
https://doi.org/10.23939/chcht17.04.796
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Keywords:

Abstract: 
We have obtained an equation for polymers relating their flexibility Y defined in 2019 to the linear isobaric thermal expansivity L. This way we have connected quantitatively a thermodynamic property to a mechanical one. The expansivity is important since different materials expand at different rates on the increase of temperature; the same applies to contraction resulting from cooling. Thus, a temperature change can cause disintegration of a composite with no mechanical force involved.
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