Polymers with improved short term hemocompatibility obtained by radiation grafting of N-vinylpyrrolidone onto silicone rubber

摘要: Abstract NPV was grafted onto silicone tubes by the “direct” radiation method in bulk and methanol toluene solutions. The kinetics of reaction were investigated at different monomer concentrations, irradiation temperatures dose-rates λ-rays. penetration front into walls followed examining cross-sections dyed tubes. It found that solutions grafting proceeded homogeneously bulk. Ungrafted as well implanted carotid arteries 6-month old lambs for periods 3 7 days. Significant improvement blood compatibility observed samples having a ratio excess 33%.