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Curing process and crosslinking density of PEGS. (A) Prepolymer PEGS was cured at 130, 150 and 170 °C for 12 h and 36 h. (B) Gel content of PEGS elastomers cured at 150 °C. Asterisks indicate significant differences, * p < 0.05, ** p < 0.01, *** p < 0.005.
