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Rigorous and simplified lattice-hole equations of state for calculating specific volumes of common pure polymers

Authors
  • Shin, Hun Yong1
  • Yoo, Ki-Pung1
  • Lee, Chul Soo1, 2
  • Tamura, Keiji1, 3
  • Arai, Yasuhiko1, 3
  • 1 Sogang University, Department of Chemical Engineering, Seoul, 121-742, Korea , Seoul
  • 2 Korea University, Department of Chemical Engineering, Seoul, 136-701, Korea , Seoul
  • 3 Idemitsu Petrochemical Co., Ltd., Production Technology Center, Chiba, 299-01, Japan , Chiba
Type
Published Article
Journal
Korean Journal of Chemical Engineering
Publisher
Springer-Verlag
Publication Date
Jan 01, 1998
Volume
15
Issue
1
Pages
15–19
Identifiers
DOI: 10.1007/BF02705300
Source
Springer Nature
Keywords
License
Yellow

Abstract

Specific volumes of common pure polymers such as low- and high-density poly(ethylene), poly(n-butyl methacrylate), poly(styrene), and poly(o-methylstyrene) were calculated by the NLF and the MF-NLF equations of state, which were developed from nonrandom lattice-hole theory. Both models contain only two molecular parameters for a pure r-mer. The NLF model is based on the rigorous approximation of lattice-hole theory and thus it is somewhat complicated in practice. The MF-NLF model is based on the two-fluid approximation of the same lattice-hole theory and thus is relatively more semi-empirical than the NLF, while preserving comparable accuracy. In this work the models were comparatively applied to the calculation of the specific volumes of pure polymers, and the results obtainedto date were presented with emphasis on the practical utility of the models.

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