Nail enamel compositions

A nail enamel composition comprising, by weight of the total composition: 10-95% solvent, and 5-90% of a copolymer resulting from the polymerization of monomer units A, B, and C wherein: wherein R1, R3, and R5 are each independently H, a C1-30 straight or branched chain alkyl, aryl, aralkyl; R2 is a pyrrolidone, or a substituted or unsubstituted aromatic, alicyclic, or bicyclic ring where the substitutents are C1-30 straight or branched chain alkyl, or COOM wherein M is a C1-30 straight or branched chain alkyl, pyrrolidone, or a substituted or unsubstituted aromatic, alicylic, or bicyclic ring where the substitutents are C1-30 straight or branched chain alkyl wherein straight or branched chain alkyl, m is 1 to 5, n is 1 to 30, y is 0 to 50; and Z=H or a C1-30 straight or branched chain alkyl, and a method and kit for coating the nails with said composition.