Morphology and reactivity of polymers prepared by covalently linking copper and cobalt sulfonated phthalocyanines to a polyacetamide backbone: Reactions of radicals with phthalocyanine pendants in bundles of the polymer

G.T. RUIZ; A. GRAHAM LAPPIN; G. FERRAUDI

New Orleans, Louisiana, USA

Congreso; 235th ACS National Meeting & Exposition; 2008

Different loads of Copper(II) and cobalt(II) tri- and tetra-sulfonated phthalocyanines, tspc, were covalently linked to a backbone of polyamide containing ~233 --CH2CH2N(COCH3)-- groups. ETM showed the association of poly(K3CuIItspc) strands in bundles of cylindrical symmetry while the strands of poly(K3CoIItspc) form bundles with a spherical symmetry. Both types of bundles are formed by agglomeration of numerous strands. A number of pendants are however isolated. Reactions of the pendants in both polymers with pulse radiolytically generated e-sol, CO2-, C H2OH and N3 were investigated. The reaction mechanism and the reaction products markedly differ from those formed in reactions of the [MII(tspc)]2\8- and MII(tspc)\4- species with the radicals. New reaction pathways of the polymers lead to the reduction of the metal center in poly(K3CuIItspc) and the formation of unstable CoIII-alkyl species in poly(K3CoIItspc).