Red-Light-Induced, Copper-Catalyzed Atom Transfer Radical Polymerization.
ACS Macro Lett
; 11(3): 376-381, 2022 03 15.
Article
en En
| MEDLINE
| ID: mdl-35575360
ABSTRACT
Despite advances in photochemical atom transfer radical polymerization (photoATRP), these systems often rely on the use of UV light for the activation/generation of the copper-based catalytic species. To circumvent the problems associated with the UV light, we developed a dual photoredox catalytic system to mediate photoinduced ATRP under red-light irradiation. The catalytic system is comprised of a Cu catalyst to control the polymerization via ATRP equilibrium and a photocatalyst, such as zinc(II) tetraphenylporphine or zinc(II) phthalocyanine, to generate the activator CuI species under red-light irradiation. In addition, this system showed oxygen tolerance due to the consumption of oxygen in the photoredox reactions, yielding well-controlled polymerizations without the need for deoxygenation processes.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Cobre
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En
Revista:
ACS Macro Lett
Año:
2022
Tipo del documento:
Article
País de afiliación:
Estados Unidos