| abstract |
The hydrogel has a first network structure and a second network structure. The second network structure is intertwined with the first network structure. The first network structure contains a polymer crosslinked by a first crosslinking agent. The second network structure contains a polymer crosslinked by a second crosslinking agent. Of the 1st crosslinking agent, 50 mol% or more does not contain a decomposable bond. Of the 2nd crosslinking agent, 50 mol% or more does not contain a decomposable bond. |