Interaction of dodecylamine with montmorillonite: Part II. Structural aspects

摘要

The structural aspects of a series of dodecylamine/montmorillonite complexes were examined by TG/DTA, XRD and SEM study. TG/DTA analysis showed tow-stage degradation of interlayered organic substance at 200-500 deg. C and 500-800 deg. C. It was observed that the presence of organic molecules on the clay surface caused an increase in its hydrophobicity. The X-ray patterns showed an increase in the basal spacings of montmorillonite caused by the intercalation of dodecylamine. The basal spacings correspond to parallel orientation of dodecyl chains.