Porphyrin-clay complexes, thermal analysis

Thermal Analysis. Clays, porphyrins, and porphyrin-clay complexes were analyzed by thermal gravimetric analysis under an inert nitrogen atmosphere. One previous study of the thermal stability of porphyrins reports that weight loss is greater and less complex in oxygen compared to nitrogen 10), Weiss... [Pg.157]

CARRADO ET AL. Thermal Analysis of Porphyrin—Clay Complexes... [Pg.161]

Aluminosilicate smectite clays have been ion-exchanged with water-soluble, cationic porphyrins and metalloporphyrins. Characteristics of their thermal stability were measured by thermal gravimetric analysis in an inert atmosphere, which yielded approximately 60% weight loss of organics. Detailed structural information about the decomposition products was obtained by performing pyrolysis-gas chromatography-mass spectrometry on the clay-organic complexes. [Pg.155]