Merging Styrene and Diene Structures to a Cyclic Diene: Anionic Polymerization of 1‐Vinylcyclohexene (VCH)

Merging Styrene and Diene Structures to a Cyclic Diene: Anionic Polymerization of 1‐Vinylcyclohexene (VCH)

We report the first anionic polymerization of 1‐vinylcyclohexene (VCH). This structure may be considered as an intermediate between dienes and styrene. The polymerization of this cyclic 1,2‐disubstituted 1,3‐diene proceeded quantitatively in cyclohexane at 25 °C with sec‐butyllithium as an initiator...

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Veröffentlicht in:Angewandte Chemie International Edition 2023-07, Vol.62 (28), p.e202302907-n/a
Hauptverfasser: Hahn, Christoph, Rauschenbach, Moritz, Frey, Holger
Format: Artikel
Sprache:eng
Schlagworte:
1,3-Dienes
Anionic polymerization
Butyllithium
Copolymerization Kinetics
Copolymers
Cyclohexane
Dienes
Glass transition temperature
Initiators
Living Anionic Polymerization
Microstructure
Molecular weight
Molecular weight distribution
Monomers
NMR
Nuclear magnetic resonance
Polyisoprene
Polymerization
Polymers
Polystyrene
Styrene
Styrenes
Transition temperatures
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Zusammenfassung:We report the first anionic polymerization of 1‐vinylcyclohexene (VCH). This structure may be considered as an intermediate between dienes and styrene. The polymerization of this cyclic 1,2‐disubstituted 1,3‐diene proceeded quantitatively in cyclohexane at 25 °C with sec‐butyllithium as an initiator. The obtained polymers have well‐controlled molecular weights in the range of 5 to 142 kg mol−1, controlled by the molar ratio of monomer and initiator, with narrow molecular weight distributions (Đ
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.202302907