Preparation and properties of benzotriazole functionalized alkyd-acrylic copolymer dispersions

ABSTRACT

The aim of the present study was the development and characterization of a novel heterocyclic monomer bearing acrylic function with silane moieties methacryloxydimethylsilyl benzotriazole (MDSB) and its application in the preparation of alkyd-acrylic hybrid emulsions. The structural conformation of MDSB was ascertained from FT-IR and NMR spectral studies. The obtained copolymer dispersions were stable for several months and had decreased thermal stability relative to neat alkyd resin due to the lower pyrolysis temperature of acrylates. The films prepared from copolymer dispersions were all transparent. Also, the presence of MDSB affected the mechanical properties of the films.

KEYWORDS:

• 1-H-Benzotriazole
• chlorodimethylsilyl benzotriazole (CDSB)
• methacryloxydimethylsilyl benzotriazole (MDSB)
• acrylic monomers