Heat capacity and other thermodynamic properties of linear macromolecules. II. Polyethylene

1 January 1981

journal article
Published by AIP Publishing in Journal of Physical and Chemical Reference Data

Vol. 10 (1) , 119-152
https://doi.org/10.1063/1.555636

Abstract

The heat capacity of polyethylene from 0 K to 600 K is reviewed using measurements on 46 samples reported in the literature. The crystallinity dependence is evaluated critically and a set of recommended data for completely crystalline and amorphous polyethylene is derived. Entropy, enthalpy, and Gibbs energy functions are calculated. Polyethylene can serve as a standard material for the thermodynamic functions of a simple linear macromolecule. This paper is the second in a series which will ultimately cover all heat capacity measurements on linear macromolecules.

Keywords

THERMODYNAMIC PROPERTIES
SPECIFIC HEAT
POLYETHYLENE
TEMPERATURE DEPENDENCE
MOLECULES
CRYSTAL STRUCTURE
ENTHAPY
ENTROPY
FREE ENTHALPY

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