Prepolymeric (meth) acrylates with polycyclic or aromatic segments

Monomers according to the following formula:

• 27
• in which the following mean:
• n=an integer from 0 to 10;
• A=H or linear or branched C1 to C15 alk(en)yl, or C3 to C15 cycloalk(en)yl or C6 to C12 aryl or C8-C18 alkaryl, of the named radicals, one or more C atoms in each case being able to be replaced by O, C═O, O(C═O), SiR2 and/or NR, R being an aliphatic radical with 1 to 7 C atoms, in which one or more C atoms can be replaced by O, C═O and/or O(C═O);
• D=E or a hydrocarbon structure which links 2 to 10, preferably 2 to 5 cyclosiloxane radicals, the structure being linear or branched or cyclic or polycyclic and containing 2 to 50 C atoms and additionally 0 to 30 other atoms from the group O, N, S, P, Cl, F, Br, I and to which 1 to 9 of the above-defined cyclosiloxane radicals according to formula (1), excluding D, are attached;
• E=A or a polymerizable group taken from the group G—C[(Q—T—L)a(A)3−a] and/or Q—L and optionally also X—T—L, up to 50%, preferably under 25% to 0% being permitted to correspond to the groups E in an average molecule A, with the proviso that in the case of molecules with only one siloxane ring, under 25% to 0% is permitted to correspond to the groups E in an average molecule A, and with the proviso that at least one group G—C[(Q—T—L)a(A)3−a] and/or Q—L must be contained in the molecule;
• G=linear, branched or cyclic C1 to C25 alk(en)ylene, arylene, alkarylene, arylalkylene, 0 to 5 C atoms being able to be replaced by a representative of the group O, S, N—A, C(O), C(O)O, OC(O), C(O)N, NC(O), OC(O)O, NC(O)O, OC(O)N, NC(O)N;
• X=C1 to C10 alk(en)ylene;
• Q=a radical containing an aromatic or polycyclic ring system in the chain, with 5 to 20 C atoms, which independently of each other also has 0 to 5 heteroatoms from the group O, N—A, S in the ring system;
• T=O, N—A or a bi- or multivalent linear, branched or cyclic alcohol, amine or amino alcohol radical with 2 to 10 C atoms;
• L=an acrylate or methacrylate group;
• a=2, 3.