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COR‐eos and BH‐eos parameters for polymer melts with the error in the all‐variables method
Author(s) -
Wohlfarth Christian
Publication year - 1993
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.1993.070481106
Subject(s) - thermodynamics , equation of state , base (topology) , polymer , basis (linear algebra) , materials science , mathematics , physics , mathematical analysis , geometry , composite material
All the data for more than 100 polymer melts in a PVT data base were used to determine best‐fit characteristic parameters for two different theoretical equations‐of‐state (eos): the chain‐of‐rotators (COR) and the Bruce Hartmann (BH) eos. Fitting was performed by applying an error in all‐variables algorithm that was recently developed by Hartmann etal. Despite their very different theoretical basis, both equations‐of‐state led to close descriptions of the PVT surface with comparable average deviations. © 1993 John Wiley & Sons, Inc.