Characterization of cobalt(II) phthalocyanine catalyst incorporated into poly(aminosiloxane) matrices

Cobalt phthalocyanine (CoPc) has been incorporated into various polysiloxan e matrices by adding Co Pc to appropriate mixtures of tri- and tetra-alkoxy silanes during hydrolytic condensation. The matrices contained Si(CH2)(3)NH 2 groups with alkyl or phenyl "spacer" groups between them. The cobalt cont ent, the surface area and the pole volume all decrease as the spacer groups become larger. EPR and UV-visible spectroscopic data show that the CoPc is bound to the amine groups and that some are in the oxygenated form, (-NH2) CoPc-O-2.