Synthesis of a novel amphiphilic porphyrin carrying water-soluble polyether side chains of controlled chain length. Formation of a cofacial molecular assembly in aqueous media

Abstract

A novel amphiphilic porphyrin carrying poly(oxyethylene) side chains of controlled chain length was obtained by polymerization of epoxyethane initiated by an aluminium porphyrin [(5,10,15,20-tetraphenylporphyrinato)-aluminium chloride] in the presence of a porphyrin with phenolic substituents [5,10,15,20-tetrakis(4′-hydroxyphenyl)porphyrin], and was found to form cofacial aggregates spontaneously in aqueous media.