Effect of the Nature of a Polymeric Stabilizer on the Rheological Properties of Interphase Adsorption Layers

A set of rheological experiments is performed for interphase adsorption layers at a water/butyl methacrylate interface formed by high molecular weight surfactants (HMWSs) (polyvinyl alcohol with various acetylated groups (PVA) and copolymer 2-acrylamido-2-methylpropanesulfonic acid with methyl methacrylate (AMPSA-MMA) having different contents of MMA links). It is shown there is an increase in the content of acetylated groups and MMA units in the studied HMWSs produces structures at the interface that differ in higher values of the viscosity and elastic modulus of the adsorption layer. The aggregate stability of dispersion during the suspension polymerization of acrylic monomers grows along with the content of hydrophobic units in the HMWS polymer chain.