Synthesis and characterization of novel silicone acrylate-soya alkyd resin as binder for long life exterior coatings

A polymeric binder on soya alkyd, silicone intermediate and 2-hydroxyethyl metacrylate has been synthesized for formulation of long life exterior coating. Initially silicone acrylate monomer (SAM) was prepared by reacting hydroxyl-terminated silicone and 2-hydroxyl ethyl methacrylate (HEMA) and characterized by Fourier transformer infrared spectroscopy (FTIR) and carbon nuclear magnetic resonance spectroscopy (C-13 NMR). SAM was used in varying concentrations to synthesize novel soya alkyd resin. The unpigmented polymer film obtained from silicone acrylate-soya alkyd resin exhibits excellent mechanical properties and good exterior durability compared to silicone modified alkyd resin. (c) 2006 Elsevier B.V. All rights reserved.