Boron-catalyzed Polymerization of Dienyltriphenylarsonium Ylides: on the Way to Pure C5 Polymerization

Abstract
The first C5 polymerization is reported, where the main-chain is growing by five carbon atoms of the monomer at a time. Three dienyltriphenylarsonium ylide monomers were synthesized and polymerized with triethylborane as initiator leading to random terpolymers (C1, C3, C5) with mainly C5 repeating units (up to 84.1%). It has been found that the methyl group (electron-donating substituent) on the conjugated double bond of ylides facilitates the formation of C5 segments. A mechanism was proposed based on NMR characterization and DFT calculations. The high C5 content ensures that we are on the right track for pure C5 homopolymerization.

Citation
Hadjichristidis, N., & Wang, X. (2021). Boron-catalyzed Polymerization of Dienyltriphenylarsonium Ylides: on the Way to Pure C5 Polymerization. Angewandte Chemie. doi:10.1002/ange.202015217

Acknowledgements
The research reported in this publication was supported by King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia.

Publisher
Wiley

Journal
Angewandte Chemie

DOI
10.1002/ange.202015217
10.1002/anie.202015217

Additional Links
https://onlinelibrary.wiley.com/doi/10.1002/ange.202015217

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