A carbosiloxane vinylic monomer of formula in which e1, e2, e3, and e4 independent of one another are an integer of 0 or 1, provided that at least one of e1, e2, e3, and e4 is an integer of 1 and (e1+e2+e3)≤2, n1 is an integer of 2 or 3, n2 is an integer of from 2 to 100 (preferably from 2 to 20, more preferably from 2 to 10, even more preferably from 2 to 6), E is C 1 -C 6 alkyl radical or tri(C 1 -C 6 alkyl)siloxyl of in which R 7, R 8 or R 9 independent of one another is a C 1 -C 6 alkyl, G 1, G 2, G 3, and G 4 independent of one another are selected from the group consisting of hydroxyl group, C 1 -C 4 hydroxyalkyl group, phosphocholine group, a poly(oxazoline) chain, a poly(ethyleneglycol) chain, a linear hydrophilic polymer chain composed of hydrophilic monomeric units derived from at least one hydrophilic vinylic monomer selected from the group consisting of (meth)acrylamide, N,N-dimethyl (meth)acrylamide, dimethylaminoethyl (meth)acrylate, dimethylaminoethyl (meth)acrylamide, N-vinyl-2-pyrrolidone, N-vinyl-N-methyl isopropylamide, N-vinyl-N-methyl acetamide, N-vinyl formamide, N-vinyl acetamide, N-vinyl isopropylamide, N-vinyl-N-methyl acetamide, N-methyl-3-methylene-2-pyrrolidone, 1-ethyl-3-methylene-2-pyrrolidone, 1-methyl-5-methylene-2-pyrrolidone, 1-ethyl-5-methylene-2-pyrrolidone, 5-methyl-3-methylene-2-pyrrolidone, 5-ethyl-3-methylene-2-pyrrolidone, 1-n-propyl-3-methylene-2-pyrrolidone, 1-n-propyl-5-methylene-2-pyrrolidone, 1-isopropyl-3-methylene-2-pyrrolidone, 1-isopropyl-5-methylene-2-pyrrolidone, 1-n-butyl-3-methylene-2-pyrrolidone, 1-tert-butyl-3-methylene-2-pyrrolidone, and mixtures thereof, L 1 is a covalent bond or a C 1 -C 6 alkyl diradical, L 2 is a C 1 -C 6 alkyl diradical, L 3 is a C 1 -C 6 alkyl diradical if e4 is an integer of 1 or a covalent bond if e4 is an integer of 0, R 1, R 2, R 3, R 4, R 5, and R 6 independent of one another are a C 1 -C 6 alkyl radical (preferably methyl), Q is the ethylenically unsaturated group, T 1, T 2, and T 3 independent of one another are a C 1 -C 6 alkyl tri-radical X 1, X 2, and X 3 independent of one another is -O-, -NR ∘ -, -CO-NR ∘ -, -NR ∘ -CO-, -NR ∘ -CO-NH-, -NH-CO-NR ∘ -, -O-CO-NH-, -NH-CO-O-, -O-CO-, -CO-O-, -NR ∘ -CO-NH-L 4 -NH-CO-NR ∘ -, -O-CO-NH-L 4 -NH-CO-O-, -NR ∘ -CO-NH-L 4 -NH-CO-O-, or -O-CO-NH-L 4 -NH-CO-NR ∘ - in which R ∘ is H or C 1 -C 10 alkyl and L 4 is an alkyl diradical, a cycloalkyl diradical, an alkylcycloalkyl diradical, an alkylaryl diradical, or an aryl diradical with up to 40 carbon atoms. e1, e2, e3, and e4 independent of one another are an integer of 0 or 1, provided that at least one of e1, e2, e3, and e4 is an integer of 1 and (e1+e2+e3)≤2, n1 is an integer of 2 or 3, n2 is an integer of from 2 to 100 (preferably from 2 to 20, more preferably from 2 to 10, even more preferably from 2 to 6), E is C 1 -C 6 alkyl radical or tri(C 1 -C 6 alkyl)siloxyl of in which R 7, R 8 or R 9 independent of one another is a C 1 -C 6 alkyl, G 1, G 2, G 3, and G 4 independent of one another are selected from the group consisting of hydroxyl group, C 1 -C 4 hydroxyalkyl group, phosphocholine group, a poly(oxazoline) chain, a poly(ethyleneglycol) chain, a linear hydrophilic polymer chain composed of hydrophilic monomeric units derived from at least one hydrophilic vinylic monomer selected from the group consisting of (meth)acrylamide, N,N-dimethyl (meth)acrylamide, dimethylaminoethyl (meth)acrylate, dimethylaminoethyl (meth)acrylamide, N-vinyl-2-pyrrolidone, N-vinyl-N-methyl isopropylamide, N-vinyl-N-methyl acetamide, N-vinyl formamide, N-vinyl acetamide, N-vinyl isopropylamide, N-vinyl-N-methyl acetamide, N-methyl-3-methylene-2-pyrrolidone, 1-ethyl-3-methylene-2-pyrrolidone, 1-methyl-5-methylene-2-pyrrolidone, 1-ethyl-5-methylene-2-pyrrolidone, 5-methyl-3-methylene-2-pyrrolidone, 5-ethyl-3-methylene-2-pyrrolidone, 1-n-propyl-3-methylene-2-pyrrolidone, 1-n-propyl-5-methylene-2-pyrrolidone, 1-isopropyl-3-methylene-2-pyrrolidone, 1-isopropyl-5-methylene-2-pyrrolidone, 1-n-butyl-3-methylene-2-pyrrolidone, 1-tert-butyl-3-methylene-2-pyrrolidone, and mixtures thereof, L 1 is a covalent bond or a C 1 -C 6 alkyl diradical, L 2 is a C 1 -C 6 alkyl diradical, L 3 is a C 1 -C 6 alkyl diradical if e4 is an integer of 1 or a covalent bond if e4 is an integer of 0, R 1, R 2, R 3, R 4, R 5, and R 6 independent of one another are a C 1 -C 6 alkyl radical (preferably methyl), Q is the ethylenically unsaturated group, T 1, T 2, and T 3 independent of one another are a C 1 -C 6 alkyl tri-radical X 1, X 2, and X 3 independent of one another is -O-, -NR ∘ -, -CO-NR ∘ -, -NR ∘ -CO-, -NR ∘ -CO-NH-, -NH-CO-NR ∘ -, -O-CO-NH-, -NH-CO-O-, -O-CO-, -CO-O-, -NR ∘ -CO-NH-L 4 -NH-CO-NR ∘ -, -O-CO-NH-L 4 -NH-CO-O-, -NR ∘ -CO-NH-L 4 -NH-CO-O-, or -O-CO-NH-L 4 -NH-CO-NR ∘ - in which R ∘ is H or C 1 -C 10 alkyl and L 4 is an alkyl diradical, a cycloalkyl diradical, an alkylcycloalkyl diradical, an alkylaryl diradical, or an aryl diradical with up to 40 carbon atoms.