Matrix Synthesis of Water-Soluble Polyaniline in the Presence of Polyelectrolytes

摘要

The matrix polymerization of aniline hydrochloride in the presence of polyanions with different chemical structures and molecular masses is studied. Poly(2-acrylamido-2-methyl-1-propanesulfonic acid) and poly(4-styrenesulfonic acid) or its sodium salt are used as polyelectrolyte matrices. It is shown that, if the polymerization of aniline hydrochloride is conducted in the presence of a polyelectrolyte matrix, water-soluble polyelectrolyte complexes in which polyaniline occurs in the form of an emeraldine salt are formed. The mechanism of polymerization is advanced. It is found that the sizes of polyaniline complexes in water are independent of the molecular mass of the polyelectrolyte matrix and its chemical structure.