Abstract
The adsolubilization of 2-naphthol by tetradecyltrimethylammonium bromide (TTAB) and by mixtures of TTAB and hydrophobically modified polyacrylamide (HMPAM) on Na-kaolinite was investigated. At concentrations of TTAB in the region of the CMC, only small differences were found in the amounts of 2-naphthol adsolubilized in the presence and in the absence of HMPAM. However, at much lower TTAB concentrations, adsolubilization of 2-naphthol onto the Na-kaolinite surface was greatly enhanced in the presence of HMPAM. The stability of the clay dispersion was found to be strongly diminished by the addition of HMPAM.
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