Amine-ene technology. III: Investigation of the properties of some branched maleate oligomers in ultraviolet light curable, amine-ene coatings

Photocrosslinking utilizing the amine-ene reaction with benzophenone (BP) as the hydrogen abstraction photoinitiator was investigated using the Simplex Experimental Design technique. Coating formulations consisting of three basic components: an allyl terminated polyester, a polymer bound amine synergist, and a branched maleate oligomer (BMO) were prepared. The chemical structure of the BMO component was varied by introducing four different saturated difunctional carboxylic acids into an oligomer backbone containing tris-(2-hydroxyethyl)isocyanurate as a branching agent.