Programming Photodegradability into Vinylic Polymers via Radical Ring‐Opening Polymerization
Abstract: Incorporation of photolabile moieties into the polymer backbone holds promise to remotely‐control polymer degradation. However, suitable synthetic avenues are limited, especially for radical polymerizations. Here we report a strategy to program photodegradability into vinylic polymers by exploiting the wavelength selectivity of photocycloadditions for radical ring‐opening polymerization (rROP). Irradiation of coumarin terminated allylic sulfides with UVA light initiated intramolecular [2+2] photocycloaddition producing cyclic macromonomers. Subsequent RAFT‐mediated rROP with methyl acrylate yielded copolymers that inherited the photoreactivity of the cyclic parent monomer. Irradiation with UVB initiated efficient photocycloreversion of the coumarin dimers, causing polymer degradation within minutes under UVB light or days under sunlight exposure. Our synthetic strategy may pave the way to insert photolabile linkages into vinylic polymers, tuning degradation for specific wavelengths.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Programming Photodegradability into Vinylic Polymers via Radical Ring‐Opening Polymerization ; day:09 ; month:01 ; year:2023 ; extent:8
Angewandte Chemie ; (09.01.2023) (gesamt 8)
- Creator
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Do, Phuong T.
Poad, Berwyck L. J.
Frisch, Hendrik
- DOI
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10.1002/ange.202213511
- URN
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urn:nbn:de:101:1-2023011014064856012908
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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15.08.2025, 7:33 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Do, Phuong T.
- Poad, Berwyck L. J.
- Frisch, Hendrik
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