Adsorption Phenomena of Polyethyleneimine onot a-Cellulose in Binary Solvent System. (Part II)

概要

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Adsorption phenomena of polyethyleneimine onto cellulose in water-organic solvent system was investigated. As a result, minimum adsorption was observed in case of 1 : 1 volume ratio of binary system, while maximum adsorption was in water or organic solvent alone.<BR>It has been demonstrated in the series of this study that both in ethyl alcohol and methyl alcohol the higher retention was observed in comparison with aqueous system but the lowest in the binary system.<BR>The adsorption step was decisive to the PEI retention, but the wash condition did not show much influence on the PEI retention. From the result of swelling value of cellulose, it was recognized that the retention of polymer did not have direct correlation to swelling. The measurement of viscocity, however, showed the strong correlation to the retention. Therefore, from these results, it was pointed out that the adsorption phenomena of polyelectrolyte to porous material like cellulosic fiber in water-organic solvent system also could be well interpreted by using so called "Jack in the box effect". (1, 2)
Japan Society of Colour Materialの論文