ISSN:
0001-1541
Keywords:
Chemistry
;
Chemical Engineering
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
The gas chromatographic (GC) method for thermodynamic measurements of polymer-solvent systems at finite concentration has been improved to extend its operating range from atmospheric pressure to over 70 atm and over 240°C. This paper describes the design and opertion of the equipment and the mathematical treatment of the GC data, and presents experimental results for n-hexane and isooctane in high density polyethylene. These results include the solubility isotherms, activity coefficients, and polymer-solvent interaction parameters. The activity coefficients covering a range from 4 to 70 atm for n-hexane in the polymer solution were correlated successfully as a function of composition using a two-parameter segment interaction equation.
Additional Material:
10 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/aic.690190609
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