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A VSE equation of state for liquids. VI. Polymethylene 450–650 K
Author(s) -
Doolittle Arthur K.
Publication year - 1980
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1980.070250214
Subject(s) - equation of state , thermodynamics , polyethylene , series (stratigraphy) , state (computer science) , value (mathematics) , chemistry , statistical physics , materials science , mathematics , physics , organic chemistry , statistics , paleontology , algorithm , biology
This is the sixth and final paper in the series under the above title. In prior papers, a VSE equation of state was proposed and applied to a variety of liquids at ambient pressure, but over broad ranges of temperature. Comparisons of thermodynamic quantities calculated from the equation were made with published measured values. In the present paper v , α, s , γ, c v , and c p are calculated for polymethylene from our equations between 450 and 650 K, but extensive corresponding values have not been measured on polymethylene at these temperatures. One approximate value of c p and one value of γ, measured on high‐density polyethylene, show that our predicted values for polymethylene must be of the correct order of magnitude. Several characteristics of the liquid state, observed during the progress of this study (1954–1979), are listed and discussed.