A highly efficient and multicomponent step-growth polymerization via carbene intermediates is established by bimetallic relay catalytic systems. This strategy, which provides a facile synthetic pathway to novel luminescent polysulfonamides, could overcome the limitation on the choice of carbene monomers and their difficulty in achieving high-molecular-weight polymers. The polymerizations occur through a tandem Cu(I)-catalyzed click reaction and an Rh(II)-catalyzed carbene 1,3-insertion reaction. The high reactivity of Rh(II)-bonded imino carbene intermediates allows a wide range of reactivity with various carboxylic acids, alcohols, and phenols. These results point to an untapped pathway for the use of metal carbene intermediates to construct new macromolecules.
Bibliographical noteKAUST Repository Item: Exported on 2022-01-19
Acknowledgements: This work is financially supported by the National Natural Science Foundation of China (21801049) and the Opening Project of Key Laboratory of Polymer Processing Engineering (South China University of Technology), and Ministry of Education (KFKT2006). N.H. acknowledges the support of King Abdullah University of Science and Technology.
ASJC Scopus subject areas
- Materials Chemistry
- Organic Chemistry
- Polymers and Plastics
- Inorganic Chemistry