Patent ID: 8318065

Claim:
A method of making a hybrid material comprising oxidation-resistant, cross-linked polymeric material containing detectable free radicals, wherein the method comprises: a) blending polymeric material with an antioxidant; b) consolidating the antioxidant blended polymeric material to another piece, thereby forming an interface and an interlocked hybrid material; c) irradiating the interlocked hybrid material by ionizing radiation, thereby forming a hybrid material comprising oxidation-resistant, cross-linked polymeric material containing detectable free radicals; and d) annealing the oxidation-resistant, cross-linked hybrid material in a liquid environment; wherein the method further comprises annealing the oxidation-resistant, cross-linked hybrid material in boiling water, boiling antioxidant-emulsion or boiling antioxidant-solution under 0.5-0.6 atm nitrogen pressure.