Fumaramide siloxane hydrogel compositions

Fumaramide-containing monomers represented by the schematic representations:

• ##STR9## Y.sub.1 and Y.sub.2 are independently O or NR.sub.4 ;
• Z.sub.1 and Z.sub.2 are independently OR.sub.3 or NR.sub.4 R.sub.5 ;
• R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are independently H or an alkyl group having 1 to 10 C atoms;
• R.sub.6, R.sub.7, R.sub.8, R.sub.9, R.sub.10 and R.sub.11 are independently hydrogen, or an alkyl-containing group having 1 to 10 C atoms, or fiuoroalkyl-containing group having 1 to 10 C atoms;
• R.sub.12, R.sub.13 and R.sub.14 are independently trimethylsiloxy or pentamethyldisiloxanyloxy;
• m is 1 to 10;
• n is 5 to 100;