FIELD: chemistry.
SUBSTANCE: silicone hydrogel prepared from a reaction mixture containing 30-70 wt % of mixtures of slow-reacting hydrophilic monomers selected from N-vinylamide, vinylpyrrolidone and N-vinylpiperidone; A silicone-containing component selected from mono (meth) acryloxyalkylpoly (dialkyl) siloxane and styrylpoly (diallyl) siloxane; and a hydroxyl-containing component. The ratio of the half-turn time of each of the slow-reacting hydrophilic components to the half-time of the silicone-containing component is at least 2.
EFFECT: proposed hydrogel derived from inexpensive commercial monomers has high wettability without surface modification, low stiffness, high transparency and satisfactory permeability for oxygen.
76 cl, 3 dwg, 31 tbl, 34 ex
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