Nonyl- and dodecylamines intercalated bentonite and illite from Turkey

Bentonite and illite were interacted with nonyl- and dodecylammonium salt s olutions to see how the alkylammonium ions became attached and oriented wit hin the interlamellar space of the clays. X-ray diffraction analyses were c arried out to obtain information on the interlamellar organization and orie ntation of the adsorbed alkylammonium compounds. Thermogravimetric analysis (TG, DTG) and Fourier Transform Infrared Analyses (FTIR) were performed to characterize the samples and to determine the amounts adsorbed by the clay samples. The modification process was effective in nonyl- and dodecylammon ium bentonites. Alkylammonium ions were adsorbed in the interlamellar space of the clays. Regarding the orientation of the alkylammonium ions between the silicate sheets, it was found that the organic cation alkylchains were parallel to the silicate layer. Intercalation was generally greater with DA ions.