3-Methacryloxypropyltris(trimethylsiloxy)silane

Methacryloxy functional silane. Three non-hydrolyzable trimethylsiloxy end groups replace the alkoxy groups of a conventional methacryloxy silane, so it acts as a monofunctional endcapper rather than a network-forming coupling agent — the methacrylate group copolymerizes with acrylic and vinyl monomers while the bulky siloxy end imparts hydrophobicity and thermal stability.