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Alkyne Polymers from Stable Butatriene Homologues: Controlled Radical Polymerization of Vinylidenecyclopropanes.
Alkyne Polymers from Stable Butatriene Homologues: Controlled Radical Polymerization of Vinylidenecyclopropanes.
- Source :
-
Journal of the American Chemical Society [J Am Chem Soc] 2023 Feb 01; Vol. 145 (4), pp. 2045-2051. Date of Electronic Publication: 2023 Jan 23. - Publication Year :
- 2023
-
Abstract
- Controlled polymerization of cumulenic monomers represents a promising yet underdeveloped strategy toward well-defined alkyne polymers. Here we report a stereoelectronic effect-inspired approach using simple vinylidenecyclopropanes (VDCPs) as butatriene homologues in controlled radical ring-opening polymerizations. While being thermally stable, VDCPs mimic butatrienes via conjugation of the cyclopropane ring. This leads to exclusive terminal-selective propagation that affords a highly structurally regular alkyne-based backbone, featuring complete ring-opening and no backbiting regardless of polymerization conditions.
Details
- Language :
- English
- ISSN :
- 1520-5126
- Volume :
- 145
- Issue :
- 4
- Database :
- MEDLINE
- Journal :
- Journal of the American Chemical Society
- Publication Type :
- Academic Journal
- Accession number :
- 36688814
- Full Text :
- https://doi.org/10.1021/jacs.2c12220