<研究報告>直接染色におけるセロフアンおよびシアノエチル化セロフアン膜中のCongo Redの拡散係数について

概要

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1. The change of apparent diffusion coefficient indicates that the dyeing of cellophane membrane with Congo Red requires the temperature of more than 80℃. 2. When the dyeing time is relatively short, the measured apparent diffusion coefficient gives the more consistency. 3. The change of apparent diffusion coefficient indicates that the most suitable concentration of NaCl is about 0.1mol. 4. The adsorption amount of dye and the apparent diffusion coefficient indicate that the most suitable degree of cyanoethylation is around 9 mol % .5. The membrane potential decreases according to the degree of cyanoethylation when it is less than 9 mol %, and increases when it is more than that. That is, the membrane adds porosity with the degree of cyanoethylation, but the more cyanoethylation reduces the porosity in the membrane surface.
1962-03-25