A) Tensile stress-strain curve, B) initial modulus, and C) cyclic compressive stress-strain curve of the photocrosslinked PPEGMC8/2, PPEGMC6/4, and PPEGMC4/6; All the above PPEGMCs were crosslinked with 3 v/v% of crosslinker and 0.11 M of photoinitiator for 1 min under UV radiation; D) Initial modulus of the hydrated redox crosslinked PPEGMC8/2, PPEGMC6/4, and PPEGMC4/6 under the cyclic compressive tests. PPEGMCs were crosslinked with 3 v/v% of crosslinker, 0.026 M of APS and 0.11 M of TEMED for 1 min at 37° C. (*p < 0.01, #p>0.01).