[Problem]The present invention is intended to provide high-strength hydrogels and method for fabricating the same. The present invention is intended to provide the method for fabricating the hydrogels with different decomposition rates.[Solution to Problem] The present invention is based on a knowledge that high-strength hydrogels can be fabricated by controlling pH of solution, ionic strength in the solution, and buffer concentration in the solution. In addition, the present invention is based on a knowledge that the high-strength hydrogels which have homogeneous macromolecular network structure can be fabricated by polymerizing four-branching compounds after having dispersed the four-branching compounds homogeneously.
