Temporal Regulation of PET‐RAFT Controlled Radical Depolymerization

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Abstract: A photocatalytic RAFT‐controlled radical depolymerization method is introduced for precisely conferring temporal control under visible light irradiation. By regulating the deactivation of the depropagating chains and suppressing thermal initiation, an excellent temporal control was enabled, exemplified by several consecutive “on” and “off” cycles. Minimal, if any, depolymerization could be observed during the dark periods while the polymer chain‐ends could be efficiently re‐activated and continue to depropagate upon re‐exposure to light. Notably, favoring deactivation resulted in the gradual unzipping of polymer chains and a stepwise decrease in molecular weight over time. This synthetic approach constitutes a simple methodology to modulate temporal control during the chemical recycling of RAFT‐synthesized polymers while offering invaluable mechanistic insights.

Location: Deutsche Nationalbibliothek Frankfurt am Main

Extent: Online-Ressource

Language: Englisch

Bibliographic citation: Temporal Regulation of PET‐RAFT Controlled Radical Depolymerization ; day:09 ; month:10 ; year:2023 ; extent:7
Angewandte Chemie ; (09.10.2023) (gesamt 7)

Creator: Bellotti, Valentina
Wang, Hyun Suk
Truong, Nghia
Simonutti, Roberto
Anastasaki, Athina

DOI: 10.1002/ange.202313232

URN: urn:nbn:de:101:1-2023101015021434080374

Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.

Last update: 14.08.2025, 11:01 AM CEST

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Associated

Bellotti, Valentina
Wang, Hyun Suk
Truong, Nghia
Simonutti, Roberto
Anastasaki, Athina

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