Aqueous polymer emulsions by chemical modifications of thermosetting alternating polyketones

Abstract

Aqueous polymer emulsions were prepared by chemical modifications of thermosetting alternating polyketones in a one-pot reaction. Polymeric amines derived from the polyketones can act as polymeric surfactants for the self-emulsification of polyketones. The stability and structure of the emulsions with respect to the storage time at room temperature (20°C) at different experimental conditions were thoroughly studied by dynamic light scattering, rheology and Cryo-SEM. Emulsions with an average particle size smaller than 1 um and a viscosity less than 1 Pa·s could be achieved and remained stable for at least 1-year. The prepared emulsions were qualified as wood adhesives for wood composite industry, according to the European Standard for wood adhesive testing. © 2007 Wiley Periodicals, Inc.