✦ LIBER ✦

Taylor dispersion measurement of the diffusivities of polymethylenes in dilute solutions

✍ Scribed by Hang-Chang Chen; Shaw-Horng Chen

Publisher: Elsevier Science
Year: 1985
Tongue: English
Weight: 535 KB
Volume: 40
Category: Article
ISSN: 0009-2509
DOI: 10.1016/0009-2509(85)85112-5

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✦ Synopsis

Experimental conditions are presented under which the Taylor dispersion technique is capable of generating accurate translational diffusion coefficients for polymers in dilute solutions across a wide temperature range. With the Monte Carlo results on polymethylene conformation, the Kirkwood-Riseman theory is found to predict quite well the diffusivities of a series of normal alkane solutes, from n-hexane to n-hexacosane, in carbon tetrachloride, toluene and chlorobenxene from 293 to 373 K.

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