Prediction of thermodynamic properties of polymer solutions using the UNIFAC group-contribution method

G. J. Price; A. J. Ashworth

doi:10.1016/0032-3861(87)90049-8

Prediction of thermodynamic properties of polymer solutions using the UNIFAC group-contribution method

G. J. Price, A. J. Ashworth

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

The UNIFAC group-contribution method has been applied to solutions of polydimethylsiloxane in a number of solvents. In the region of high polymer concentration, the predicted Flory-Huggins interaction parameters are not in good agreement with experimental values and the predicted variation with molecular weight is the opposite to that measured. However, it has been shown that, if a single experimental result is available, the UNIFAC predictions can be improved to within a few per cent.

Original language	English
Pages (from-to)	2105-2109
Number of pages	5
Journal	Polymer
Volume	28
Issue number	12
DOIs	https://doi.org/10.1016/0032-3861(87)90049-8
Publication status	Published - 1 Jan 1987

Keywords

interaction parameter
molecular weight
polydimethylsiloxane
UNIFAC

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics

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10.1016/0032-3861(87)90049-8

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abstract = "The UNIFAC group-contribution method has been applied to solutions of polydimethylsiloxane in a number of solvents. In the region of high polymer concentration, the predicted Flory-Huggins interaction parameters are not in good agreement with experimental values and the predicted variation with molecular weight is the opposite to that measured. However, it has been shown that, if a single experimental result is available, the UNIFAC predictions can be improved to within a few per cent.",

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year = "1987",

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N2 - The UNIFAC group-contribution method has been applied to solutions of polydimethylsiloxane in a number of solvents. In the region of high polymer concentration, the predicted Flory-Huggins interaction parameters are not in good agreement with experimental values and the predicted variation with molecular weight is the opposite to that measured. However, it has been shown that, if a single experimental result is available, the UNIFAC predictions can be improved to within a few per cent.

AB - The UNIFAC group-contribution method has been applied to solutions of polydimethylsiloxane in a number of solvents. In the region of high polymer concentration, the predicted Flory-Huggins interaction parameters are not in good agreement with experimental values and the predicted variation with molecular weight is the opposite to that measured. However, it has been shown that, if a single experimental result is available, the UNIFAC predictions can be improved to within a few per cent.

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KW - molecular weight

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Prediction of thermodynamic properties of polymer solutions using the UNIFAC group-contribution method

Abstract

Keywords

ASJC Scopus subject areas

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