Radiation-grafting of 2-hydroxyethylmethacrylate and oligo (ethylene glycol) methyl ether methacrylate onto polypropylene films by one step method

► PP was grafted with a hydrogel layer applying the γ-ray pre-irradiation method. ► Effects of radiation dose, time, temperature and monomers concentration were evaluated. ► Grafted layer increases the hydrophilicity of PP films. ► HEMA and OEGMA grafted onto PP may be of interest for biomedical applications.