Synthesis of three novel silane-based carboxylic acids for application in methacrylated epoxy-based oligomers and their ability in the UV curable hybrid coatings

In this study, bromoacetic acid was reacted with 3-(mercaptopropyl) trimethoxy silane (MPTS) and trimethoxy silyl propyl thioacetic acid (TSTA) was produced. Also, bromoacetic acid was reacted with 3-(triethoxysilyl) propylamine (APTS), and triethoxysilyl propylamino acetic acid (TSPA) was synthesized. So, the carboxylic acid head and a trialkoxy silane tail including reactants were obtained. Hybrid coatings based on methacrylated bisphenol A epoxy (MBAE) and synthesized carboxylic acids were obtained by photopolymerization. Then, the solvent resistance, hardness, gel content as well as the adhesion of coatings were measured as physical and mechanical properties. According to the obtained results, these properties of hybrid coatings improved with the increase in alkoxysilanes and sol–gel precursor contents.