Diacrylate and dimethacrylate monomers contain two acrylate or methacrylate groups, respectively. They are highly reactive and can undergo crosslinking reactions to form polymers with enhanced properties. They are used to produce crosslinked polymers for applications such as elastomers, adhesives, and sealants. Diacrylate monomers are also used to make optical fibers and other high-performance materials. Macromonomers derived from diacrylate and dimethacrylate monomers can be used to make materials with improved mechanical properties and durability.