| 摘要 |
Organosilicon-containing materials are useful in articles such as biomedical devices, including contact lenses. The materials include macromonomers endcapped with at least one ethylenically unsaturated radical, and monomers. The macromonomers and monomers include units of the formula: <IMAGE> wherein: each Y is -O- or -NR30- wherein R30 is H or C1-C6 alkyl; each R1, R2, R3, R4 and R5 is independently selected from the group consisting of H, C1-C6 alkyl, C1-C6 haloalkyl, C2-C6 alkyl wherein at least one methylene group is replaced with -O-, C2-C6 haloalkyl wherein at least one methylene group is replaced with -O-, and -RSi; m and n are independently 0 or an integer of 1 to 6; each RSi is independently an organosilicon radical; and R is the divalent residue of an alpha , omega -dihydroxyl compound or an alpha , omega -diamino compound.
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