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(a) High-resolution XPS C 1s spectra of AGEpp films deposited on PDMS before (AGEpp) and after reaction with PEG-COOH2 600 (AGEpp PEG 600) and PEG-COOH2 3400 (AGEpp PEG 3400). The dashed lines show binding energies of carbon atoms in a C–C∕C–H environment (285 eV), C–O∕C–N (286.5 eV), and O–C=O (289.3 eV) environments. [(b) and (c)] Static water contact angle after 24 h.
