Patent ID: 8877954

Claim:
A functionalized nanoparticle comprising on a surface covalently bound radical of the formula (I) and a covalently bound radical of formula (II): wherein the functionalized nanoparticle is a SiO 2 nanoparticle; X is oxygen; sulfur; or R 1 is a photoinitiator having as formula selected from the group consisting of R 2 and R 3 are each independently hydrogen; C 1 -C 25 alkyl; C 3 -C 25 alkyl, which is interrupted by oxygen or sulfur; C 2 -C 24 alkenyl; phenyl; C 7 -C 9 -phenylalkyl; —OR 5 ; R 4 is hydrogen; C 1 -C 25 alkyl; or C 3 -C 25 alkyl, which is interrupted by oxygen or sulfur; R 5 is hydrogen; C 1 -C 25 alkyl; which is interrupted by oxygen or sulfur; C 2 -C 24 alkenyl; phenyl; C 7 -C 9 phenylalkyl; or the nanoparticle surface, R 6 and R 7 are each independently hydrogen; C 1 -C 25 alkyl; C 3 -C 25 alkyl, which is interrupted by oxygen or sulfur; C 2 phenyl; C 7 -C 9 -phenylalkyl; or —OR 5 ; R 8 , R 9 and R 10 are each independently hydrogen; C 1 -C 25 alkyl; C 3 -C 25 alkyl, which is interrupted by oxygen or sulfur; C 2 -C 24 alkenyl; phenyl; or C 7 -C 9 phenylalkyl; R 11 is C 1 -C 25 alkyl; C 3 -C 25 alkyl, which is interrupted by oxygen, sulfur or amino-, mercapto-, or hydroxyl substituted C 2 -C 24 alkyl; amino-, mercapto-, or hydroxyl substituted C 2 -C 24 alkyl, which is interrupted by oxygen, sulfur, or C 2 -C 24 alkenyl; C 5 -C 12 cycloalkyl; C 5 -C 2 cycloalkenyl; a polymerizable group; or a polymer; R 12 and R 13 are each independently hydrogen; C 1 -C 25 alkyl; C 3 -C 25 alkyl, which is interrupted by oxygen or sulfur; C 2 -C 24 alkenyl; phenyl; C 7 -C 9 -phenylalkyl; —OR 15 ; R 14 is hydrogen; C 1 -C 25 alkyl; or C 3 -C 25 alkyl, which is interrupted by oxygen or sulfur; R 15 is hydrogen; C 1 -C 25 alkyl; C 3 -C 75 alkyl, which is interrupted by oxygen or sulfur; C 2 -C 24 alkenyl; phenyl; C 7 -C 9 -phenylalkyl; or the nanoparticle surface, R 16 and R 17 are each independently hydrogen; C 1 -C 25 alkyl; C 3 -C 25 alkyl, which is interrupted by oxygen or sulfur; C 2 -C 24 alkenyl; phenyl; C 7 -C 9 -phenylalkyl; —OR 15 , R 18 , R 19 and R 20 are each independently hydrogen; C 1 -C 25 alkyl; C 3 -C 25 alkyl, which is interrupted by oxygen or sulfur; C 2 -C 24 alkenyl; phenyl; or C 7 -C 9 phenylalkyl, R 43 and R 44 are each independently hydrogen; C 1 -C 18 alkoxy; or di(C 1 -C 4 alkyl)amino; R 45 is hydrogen; C 1 -C 18 alkyl; or C 1 -C 18 alkoxy; R 63 and R 64 are each independently hydrogen; C 1 -C 18 alkoxy; C 1 -C 4 alkylthio; morpholinyl; or C 7 -C 9 phenylalkyl of phenyl; R 65 and R 66 are each independently C 1 -C 18 alkyl; R 67 is C 2 -C 4 alkylene; R 68 is hydrogen or C 1 -C 18 alkyl; R 69 is C 3 -C 7 alkylene; R 70 and R 71 are each independently C 1 -C 8 alkyl or C 7 -C 9 -phenylalkyl; R 72 and R 73 are each independently C 1 -C 8 alkyl; or R 72 and R 73 are together —CH 2 CH 2 —O—CH 2 CH 2 — thus forming with the nitrogen atom to which they are attached a morpholinyl ring; R 74 is hydrogen; C 1 -C 18 alkyl; or C 7 -C 9 -phenylalkyl; and n is 1, 2, 3, 4, 5, 6, 7 or 8.