STUDIES ON PROTEIN-RESISTANCE OF AMPHIPHI LIC POLYSTYRENE-G-POLY (ETHYLENE-OXIDE) COPOLYMERS

The adsorption isotherm and kinetics of simple plasma protein (human s erum albumin immunoglobulin or fibrinogen)-buffer onto the surfaces of (PS-g-PEO) graft copolymers were investigated by radioiodine labellin g technique, The reliability of ICl labelling method was verified, It was discovered that the plateau protein adsorption amount usually decr eased with surface PEO content of PS-g-PEOs increasing; the lowest pro tein plateau adsorption values were observed <0.25 mu g . cm(-2). The ''comb-like'' structure of model materials might be more fit for prote in-resistant property of PEO side chains.