Small-Angle Neutron Scattering Study of the Structure of Superswollen Micelles Formed by a Highly Asymmetric Poly(oxybutylene)-Poly(oxyethylene)Diblock Copolymer in Aqueous Solution

摘要

In a selective solvent,block copolymers form micelles with a compact core and a highly swollen corona.Small-angle scattering is a powerful tool to investigate the internal structure and arrangement of such block copoly-mer micelles,via the form factor and structure factor,respectively.Prior work on block copolymer micellar systems has been reviewed recently together with model expressions for analyzing scattering data from such systems.