posted on 2021-08-05, 13:43authored byIngeborg Schreur-Piet, Johan P.A. Heuts
Statistical copolymers
of methacrylic acid (MAA) and methyl methacrylate
(MMA), butyl methacrylate (BMA), or lauryl methacrylate (LMA) were
synthesized via cobalt(II)-mediated catalytic chain transfer polymerization
(CCTP) and used as macromonomeric stabilizers in the emulsion polymerization
of MMA. By varying the composition, length, and concentration of the
macromonomers, we were able to tune the particle size, molar mass,
and rheological behavior of the latexes. Most latexes stabilized with
macromonomers containing BMA and LMA showed rheological properties
such as small yield stress and shear thinning behavior similar to
those of binders for coating applications.