高粘性液における炭酸ガスの拡散係数について

概要

論文の詳細を見る
Following the previous report (This Journal 43,603,1965), a teflon membrane technique was adopted to measure additionally the molecular diffusivity of carbon dioxide in dilute aqueous solutions of sodium polyacrylate, sodium alginate and methyl cellulose; the sodium polyacrylate solution exhibited strongly a pseudoplastic behavior, while the sodium alginate and methyl cellulose solutions studied here were viscous Newtonian liquids.The values of diffusivity in those solutions were of the same order of magnitude as those in water, though the molecular diffusivity seems to be deteriorated appreciably due to the concentration of these highly viscous and polymer materials.In that sense, the Stokes-Einstein correlation which holds in the molecular diffusivity of a spesific material in a low molecular and Newtonian liquid cannot be applied to these sorts of high molecular and dilute solutions.
社団法人日本生物工学会の論文
1967-08-25