Patent ID: 6962768

Claim:
A photosensitive copolymer including an α-fluorinated acrylate monomer and an alkenyl ether monomer having the formula I wherein R 1 and R 2 are independently selected from a group consisting of hydrogen and methyl; R 3 and R 4 are independently selected from a group consisting of hydrogen, hydroxy, alkyl, cycloalkyl, haloalkyl, alkoxy, carboxyl, carbonyl, ester and acid labile groups; and R 5 is selected from a group consisting of hydrogen, hydroxy, substituted and unsubstituted alkyls, substituted and unsubstituted cycloalkyls, substituted and unsubstituted alkoxys, substituted and unsubstituted heterocyclics, and acid labile groups; further wherein at least one of R 3 , R 4 and R 5 include an acid labile group.