Macromolecular photocrosslinkers have polymeric backbones of substituted
siloxane groups carrying photoactive groups. When exposed to light of
wavelength above 305 nm, the photocrosslinkers are adapted to generate
radicals which are retained on the macromolecular photocrosslinker and
react to form a crosslinked network structure. The photocrosslinkers may
be used in the production of medical devices, including ophthalmic lenses.
Os photocrosslinkers macromolecular têm as espinhas dorsais polymeric dos grupos substituídos do siloxane que carregam grupos photoactive. Quando expostos à luz do wavelength acima de 305 nm, os photocrosslinkers são adaptados para gerar os radicais que são retidos no photocrosslinker macromolecular e para reagir ao formulário uma estrutura crosslinked da rede. Os photocrosslinkers podem ser usados na produção de dispositivos médicos, including lentes ophthalmic.
