Silicone acrylamide copolymer

A copolymer formed from a reactive mixture comprising radically polymerizable components comprising (A) a multi-functional (meth)acrylamide monomer having at least one siloxane bond and at least two (meth)acrylamide groups within a molecule and (B) a mono-functional linear silicone (meth)acrylamide monomer of formula (P1)

• where Rq comprises a (meth)acrylamide group containing no silicon atom;
• Ra to Re contain no silicon atoms, and are independently selected from substituted or unsubstituted alkyl groups having 1 to 20 carbon atoms, or substituted or unsubstituted aryl groups having 6 to 20 carbon atoms, and n represents an integer of 1 or greater,
• wherein the substituted groups of alkyl, when present, are selected from halogen, hydroxyl, amino, ether, carboxyl, ester, amide, sulfonyl, phenyl, and naphthyl, and wherein the substituted groups of aryl, when present, are selected from halogen, hydroxyl, amino, ether, carboxyl, ester, amide, sulfonyl, C1-C6 alkyl, phenyl, and naphthyl.