Monomers with urea groups

摘要

There is disclosed a family of new vinyl monomers capable of forming polymers by free radical polymerization. The vinyl monomer is of the formula <IMAGE> wherein R1 and R2 are substituted or unsubstituted hydrocarbons, X is O, NH or NR3, and R3 is substituted or unsubstituted hydrocarbon. The intermediates in the synthesis of these monomers are new beta-chloroalanine ureas. The polymers are useful in film and fiber formation and display good toughness. These new vinyl monomers also form a cyclic monomer.