The formation of spherical micelles in aqueous solutions of poly(N-methyl-2-vinyl pyridinium iodide)-blockpoly(ethylene oxide), P2MVP-b-PEO and poly(acrylic acid)-block-poly (vinyl alcohol), PAA-b-PVOH has been investigated with light scattering-titrations, dynamic and static light scattering, and H 2D Nuclear Overhauser Effect Spectroscopy. Complex coacervate core micelles, also called PIC mic...