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Polydimethylsiloxane or glycidol-grafted gelatin films with excellent flexibility and strong hydrophobicity were fabricated by mono epoxy-terminated polydimethylsiloxane (PDMS-E)-grafted gelatin (PGG) and glycidol-grafted gelatin (GGG). Mixed reactive aqueous solutions of PGG and GGG were poured into a Teflon mold. The solutions were dried slowly and eight films were obtained with a thickness of around...