Compositions of aluminum phthalocyanine with amphiphilic N-vinylpyrrolidone copolymers and their nanosized structures in aqueous media. Experimental and theoretical research

Abstract

Water-soluble compositions of aluminum phthalocyanine (PcAlCl) were developed and characterized by the solubilization of PcAlCl with the amphiphilic copolymers N-vinylpyrrolidone—triethylene glycol dimethacrylate and N-vinylpyrrolidone—cyclohexyl methacrylate—triethylene glycol dimethacrylate. Their nanosized structures were shown to absorb and fluoresce in aqueous media. The relative fluorescence quantum yield of the dye encapsulated in the terpolymer is an order of magnitude higher than that of PhAlCl in the double copolymer and is equal to ∼3.7%. Possibilities of the formation of solvates/complexes PcAlC1/DMSO and their complexes with monomer units, as well as structures of free PcAlC1 with the monomer units and polymer chains consisting of these units, were considered using quantum chemical calculations.