Adsorption of a Trimeric Surfactant on Titanium Dioxide with Quaternary Ammonium Groups

概要

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Adsorption of a trimeric cationic surfactant, methyldodecylbis [2- (dimethyldodecyl ammonio) ethyl] ammonium tribromide (3RdienQ) on titanium dioxide modified with quaternary amonium groups (XNm, m= alkyl chain length from 4 to 16) was studied. The amount of 3RdienQ adsorbed increased with an increase of the alkyl chain length on XNm. ESR measurements using a spin probe indicate that microviscosity of the 3RdienQ adsorbed layer is greater compared with that of untreated titanium dioxide. Adsolubilization behavior of 2-naphthol was markedly influenced by the alkyl chains grafted on titanium dioxide.
Japan Society of Colour Materialの論文