Diffusion of ethylbenzene in molten polystyrene

✍ Scribed by J. L. Duda; Y. C. Ni; J. S. Vrentas

• Publisher: John Wiley and Sons
• Year: 1978
• Tongue: English
• Weight: 576 KB
• Volume: 22
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.1978.070220309

✦ Synopsis

Mutual diffusion coefficients are measured for the ethylbenzene-polystyrene system for the temperature range of 115.5°-1780C and for concentrations as high as.70 wt-96 ethylbenzene. Experiments were carried out using a quartz spring sorption apparatus which was modified for hightemperature measurements. The diffusivity data are compared with the predictions of a recently developed free-volume theory of polymer-solvent diffusion.