Fluorosilicone hydrogels

A siloxane-containing monomer having at least one fluorinated side group and having the general schematic representaton:

• ##STR15## wherein:
• R is an alkyl or alkylene group having 1 to 10 carbon atoms and which may have ether linkages between carbon atoms;
• R.sub.1 -R.sub.4 may independently be a monovalent hydrocarbon radical or a halogen substituted monovalent hydrocarbon radical having 1 to 18 carbon atoms which may have ether linkages between carbon atoms;
• x is .gtoreq.0;
• y is .gtoreq.1;
• x+y=2 to 1000;
• R.sub.5 is a fluorinated side group having the general schematic representation:
• --D--(CF.sub.2).sub.z --H
• wherein z is 1 to 20;
• D is alkyl or alkylene group having 1 to 10 carbon atoms and which may have ether linkages between carbon atoms;
• and
• A is an activated unsaturated group.

A fluorinated bulky polysiloxanylalkyl (meth)acrylate-containing monomer having the general schematic representation:

• ##STR16## wherein A is an activated unsaturated group, such as an ester or amide of an acrylic or a methacrylic acid;
• R.sub.6 is CH.sub.3 or H;
• R is an alkyl or alkylene group having 1 to 10 carbon atoms and which may have ether linkages between carbon atoms;
• D is an alkyl or alkylene group having 1 to 10 carbon atoms and which may have ether linkages between carbon atoms;
• x is 1, 2 or 3;
• y is 0, 1 or 2;
• and
• x+y=3.

A fluorinated bulky polysiloxanylalkyl-containing monomer having the formula:

• ##STR17## wherein R.sub.7 is CH.sub.2;
• x is 1, 2 or 3;
• y is 0, 1 or 2;
• and
• x+y=3.