The surface properties of several complex polymer materials compatibilized by adding block copolymers coupled with electron beam irradiation have been determined. The investigation methods were sessile drop method, electron microscopy and protein absorption. The protein absorption leads both to enhance and to test the biocompatibility.
It has been established the optimum radiation dose to achieve a good biocompatibility for the polyethylene/polystyrene and polypropylene/EPDM blends used in medical purposes.

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1. SOME ASPECTS CONCERNING DRUG RELEASE FROM A POLYMERIC MATRIX BASED ON POLYMETHYLMETHACRYLATE AND ITS COPOLYMERS