First, the effect of pendent shield size on crosslinking was assessed at constant weight percent and static conditions (Figure ). When solutions are formulated at 50 wt% of polymer with EDA, poly(GMA-co-MEMA) crosslinks very quickly (1 h) and reaches a final G' on the order of 10 6 Pa. Conversely, poly(GMA-co-PEGMA500) crosslinks more slowly (8 h) and reaches a final G' on the order of 10 4 Pa, and poly(GMA-co-PEGMA950) shows no change in modulus indicating no crosslinking occurred. At constant 50 wt% of polymer in solution, the concentration of epoxide for unshielded samples (MEMA) is very high compared to the shielded polymers (PEGMA). At this fixed concentration, the overall mass for the shielded polymer solutions is dominated by the presence of ether in the PEGMA side chains, skewing the sample in favor of unreactive ether and decreasing the number of possible crosslinks. The lack of increase in modulus with PEGMA950 may be due to this ether dominance preventing the formation of a volume-spanning network. Additionally, the relatively large mass of the ether sidechains decreases the amount of reactive epoxy in solution.