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Metal-free atom transfer radical polymerization with ppm catalyst loading under sunlight.

ABSTRACT: Organocatalytic atom transfer radical polymerization (O-ATRP) is recently emerging as an appealing method for the synthesis of metal-free polymer materials with well-defined microstructures and architectures. However, the development of highly effective catalysts that can be employed at a practical low loading are still a challenging task. Herein, we introduce a catalyst design logic based on heteroatom-doping of polycyclic arenes, which leads to the discovery of oxygen-doped anthanthrene (ODA) as highly effective organic photoredox catalysts for O-ATRP. In comparison with known organocatalysts, ODAs feature strong visible-light absorption together with high molar extinction coefficient (?_455nm up to 23,950?M^-1?cm^-1), which allow for the establishment of a controlled polymerization under sunlight at low ppm levels of catalyst loading.

SUBMITTER: Ma Q

PROVIDER: S-EPMC7814125 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature

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Metal-free atom transfer radical polymerization with ppm catalyst loading under sunlight.

Ma Qiang Q Song Jinshuai J Zhang Xun X Jiang Yu Y Ji Li L Liao Saihu S

Nature communications 20210118 1

Organocatalytic atom transfer radical polymerization (O-ATRP) is recently emerging as an appealing method for the synthesis of metal-free polymer materials with well-defined microstructures and architectures. However, the development of highly effective catalysts that can be employed at a practical low loading are still a challenging task. Herein, we introduce a catalyst design logic based on heteroatom-doping of polycyclic arenes, which leads to the discovery of oxygen-doped anthanthrene (ODA) ...[more]

PMID: 33462235

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