Nanostructural behavior aspects of macromolecules with different molecular architecture on interfaces

Abstract

This work describes a new class of macromolecular compounds, i.e., acrylic acid and isobornyl acrylate gradient block copolymers synthesized by controlled radical polymerization. A series of these gradient block copolymers was compared with acrylic acid and isobornyl acrylate block copolymers with similar compositions to demonstrate the effect of copolymer molecular architecture and the intense mechanical effect on their surface interactions with particles of different nature in aqueous dispersion systems. The method of electrokinetic sonic amplitude revealed the architectural effect of macromolecules to their surface interaction the particles at various concentrations of polymer and calculated the parameters of polymer adsorption layers. The surface interaction models were suggested for macromolecules of block and gradient block copolymers of various compositions with hydrophilic and hydrophobic particles and the copolymer architecture was proven to determine the nanostructure of polymer adsorption layers on interface. The nanostructural differences were suggested and confirmed in the interaction of block and gradient block copolymers with interface of different nature.