主权项 |
1. A hydrogel composition comprising:
a first reactive precursor comprising a multi-arm polyether possessing electrophilic groups; a second reactive precursor comprising nucleophilic groups; and at least one initiated precursor selected from the group consisting of phosphorylcholine containing monomers, furanone functional vinyl monomers, N-vinyl pyrrolidone, siloxane functional vinyl compounds, polyethylene glycol-silicone co-monomers having vinyl groups, pyrrole, liquid crystalline vinyl monomers, liquid crystalline vinyl polymers, and combinations thereof, wherein the first reactive precursor is reactive with the second reactive precursor to form a first hydrogel, and the initiated precursor forms a second hydrogel upon exposure with an initiator. |