Water soluble silicone material

A macromer comprising:

• a siloxane backbone;
• a graft attached to the siloxane backbone, the graft comprising a polymerizable functional group;
• and
• a concentration of grafts comprising hydrophilic groups sufficient to render the macromer at least partially hydrophilic, wherein the macromer is of the Formula (1):
• where M is a polymeric hydrophilic group or segment chosen from a polyvinyl alcohol (PVA), a polyamide, a polyimide, a polylactone, a homopolymer of a vinyl lactam, a copolymer of at least one vinyl lactam in the presence or in the absence of one or more vinylic comonomers, a homopolymer of acrylamide, a homopolymer of methacrylamide, a copolymer of acrylamide with one or more hydrophilic vinylic monomers, a copolymer methacrylamide with one or more hydrophilic vinylic monomers, polyethylene glycol, a poly-N--N dimethylacrylamide, a polyacrylic acid, a poly-2-ethyl oxazoline, a heparin polysaccharides, a polysaccharide, or a combination of two or more thereof;
• L is a hydrophilic or hydrophobic linkage;
• N is a hydrophilic or hydrophobic group or segment;
• Q is a polymerizable functional group;
• x is zero or an integer greater than zero;
• y is zero or an integer greater than zero;
• v is an integer greater than zero;
• and z is greater than zero;
• when the L group is a hydrophilic linkage, L can be the same as or different than the hydrophilic M group;
• R is independently hydrogen, a straight or branched C1-C30 alkyl group, a C1-C30 fluoroalkyl group, a C1-C20 ester-containing group, an alkyl ether, cycloalkyl ether, cycloalkenyl ether, aryl ether, arylalkyl ether, a polyether-containing group, a C1-C30 alkoxy group, a C3-C30 cycloalkyl group, a C3-C30 cycloalkylalkyl group, a C3-C30 cycloalkenyl group, a C5-C30 aryl group, a C5-C30 arylalkyl group, a C5-C30 heteroaryl group, a C3-C30 heterocyclic ring, a C4-C30 heterocyclolalkyl group, a C6-C30 heteroarylalkyl group, fluorine, a C5-C30 fluoroaryl group, or a hydroxyl group.