Living Cationic Ring‐Opening Polymerization of Hetero Diels–Alder Adducts to Give Multifactor‐Controlled and Fast‐Photodegradable Vinyl Polymers

Precise control of multiple structural parameters associated with vinyl polymers is important for producing materials with the desired properties and functions. While the development of living polymerization methods has provided a way to control the various structural parameters of vinyl polymers, t...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2023-08, Vol.62 (31), p.e202305414-n/a
Main Authors: Chae, Ju‐Hyung, Choi, Minyeong, Son, Semin, Ko, Su‐Min, Lee, In‐Hwan
Format: Article
Language:English
Subjects:
Adducts
Alternating
Block copolymers
Cationic polymerization
Chemical synthesis
Copolymerization
Hetero Diels–Alder Adduct
Living Polymerization
Molecular weight
Monomers
Parameters
Photodegradation
Polymerization
Polymers
Prepolymers
Ring opening polymerization
Ring-Opening
Thermal properties
Thermodynamic properties
Vinyl polymers
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Summary:Precise control of multiple structural parameters associated with vinyl polymers is important for producing materials with the desired properties and functions. While the development of living polymerization methods has provided a way to control the various structural parameters of vinyl polymers, the concomitant control of their sequence and regioregularity remains a challenging task. To overcome this challenge, herein, we report the living cationic ring‐opening polymerization of hetero Diels–Alder adducts. The scalable and modular synthesis of the cyclic monomers was achieved by a one‐step protocol using readily available vinyl precursors. Subsequently, living polymerization of the cyclic monomers was examined, allowing the synthesis of vinyl polymers while controlling multiple factors, including molecular weight, dispersity, alternating sequence, head‐to‐head regioregularity, and end‐group functionality. The living characteristics of the developed method were further demonstrated by block copolymerization. The synthesized vinyl polymers exhibited unique thermal properties and underwent fast photodegradation even under sunlight. The living cationic ring‐opening polymerization of a hetero Diels–Alder adduct is reported. Vinyl polymers are produced with control of multiple structural parameters, including alternating sequence and head‐to‐head regioregularity. The photodegradability of the obtained polymers has been thoroughly investigated for the first time.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.202305414