Issue 87, 2023

Controlled synthesis of cyclic helical polyisocyanides and bottlebrush polymers using a cyclic alkyne–Pd(ii) catalyst

Abstract

Cyclic polymers have very unique structure and properties, and thus have drawn intense research attention. However, controlled synthesis of cyclic polymers with predictable molar mass and narrow distribution is still a challenging task. In this study, we developed a novel cyclic catalyst that initiates the ring-expansion polymerisation of isocyanides, producing a series of cyclic helical polymers with predictable molecular weight and low dispersity. Interestingly, the ring-expansion polymerization of the isocyanide macromonomers gives well-defined cyclic bottlebrush polymers. The cyclic topology was demonstrated using transmission electron microscopy.

Graphical abstract: Controlled synthesis of cyclic helical polyisocyanides and bottlebrush polymers using a cyclic alkyne–Pd(ii) catalyst

Supplementary files

Article information

Article type
Communication
Submitted
23 8 2023
Accepted
05 10 2023
First published
05 10 2023

Chem. Commun., 2023,59, 13002-13005

Controlled synthesis of cyclic helical polyisocyanides and bottlebrush polymers using a cyclic alkyne–Pd(II) catalyst

B. Duan, J. Yu, R. Gao, S. Li, N. Liu and Z. Wu, Chem. Commun., 2023, 59, 13002 DOI: 10.1039/D3CC04095J

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