Shelf Stability of Isocyanate‐Functionalized Vinyl Acrylic Latexes

Abstract Copolymerization of vinyl acetate (VA) with butyl acrylate (BA) and dimethyl meta‐isopropenyl benzyl isocyanate (TMI) was carried out at 40 °C in emulsions stabilized with sodium dodecyl sulfate (SDS) or sodium dodecyl benzene sulfonate (SDBS). Regardless of the type of surfactant employed, latexes were very unstable during storage. Moreover, the hydrolysis of TMI and undesirable premature crosslinking of the polymeric chains did occur at room temperature during latexes storage.