n-ドデシルベンゼンスルホン酸ナトリウムの可溶化作用に及ぼすヒドロキシプロピルセルロースの効果

概要

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The effect of water-soluble polymer, hydroxypropyl cellulose (HPC), on solubilization behavior of sodium n-dodecylbenzene sulfonate (DBS) toward three kinds of oil-soluble monoazo dyes,i.e., Oil Yellow AB, Oil Yellow OB and Oil Orange SS, has been investigated in aqueous solutions containing DBS, HPC and sodium sulfate (0.05 mol/l). The amount of solubilized dye increased with an increase in the concentration of HPC. The weight-average molecular weight (M^^-w) of HPC showed little effect on solubilization of those dyes.The solubilizing bower (Sp) decreased in the order, Oil Yellow AB > Oil Yellow OB > Oil Orange SS regardless of the presence of HPC. The Sp increased with the temperature below the cloud point of HPC, but decreased above that. It was estimated from the viscosity behaviors of DBS-HPC mixed solutions that DBS-HPC complexes are formed by the interaction between DBS and HPC in water. The absorption spectra of oil-soluble dyes in n-dodecane, n-dodecylbenzene,and the aqueous solution of HPC suggest that Oil Yellow AB and Oil Yellow OB arc mainly solubilized in the part of HPC region of DBS-HPC complexes, while Oil Orange SS is mainly solubilized in the part of hydrocarbon region of the complexes.
社団法人日本家政学会の論文
1991-09-15