Polyion Complex Micelles: Preparation and Physicochemical Properties


Kazunori Kataoka Department of Materials Science, Department of Materials Engineering

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The self-assembly of block copolymers has received considerable attention not only regarding its applications as functional materials, but also from a fundamental viewpoint. It is well known that the self-assemblies of block copolymers take various morphologies, including spherical particles, rod structures, and lamellar structures. Many studies on the block copolymer's self-assembly as spherical particles, i.e., polymeric micelles, which are characterized by a mesoscopic average diameter and a core–corona structure, have been reported. Recently, polyion complex (PIC) micelles were introduced as a new entity of polymeric micelles in aqueous medium. In this article, we review the preparation and physicochemical properties of PIC micelles.