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Synfacts 2023; 19(03): 0235
DOI: 10.1055/s-0042-1753320
Synthesis of Materials and Unnatural Products

Trifunctional Lewis Pair Catalyzed Cyclopolymerization

Contributor(s):
Dahui Zhao
,
Chen Li
Song Y, He J, Zhang Y, *, Gilsdorf RA, Chen EY.-X. Jilin University, Changchun, P. R. of China
Recyclable Cyclic Bio-based Acrylic Polymer via Pairwise Monomer Enchainment by a Trifunctional Lewis Pair.

Nat. Chem. 2022;
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Key words

frustrated Lewis pair - cyclic polymer - recyclable polymer - synergistic bimolecular mechanism

Significance

Compared with conventional linear polymers, cyclic polymers boast unique properties, such as lower intrinsic viscosity, smaller hydrodynamic volume, higher thermal stability, etc. However, their syntheses are apparently more challenging. A new, recyclable cyclic polymer is accomplished here.


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Comment

A trifunctional frustrated Lewis pair consisting of two boron-centered Lewis-acid branches linked by a phosphane Lewis-base moiety is the key to the synthesis of the cyclic poly(γ-methyl-α-methylene-γ-butyrolactone) (c-PMMBL) via a synergistic cyclobimolecular catalysis mechanism.


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Publication History

Article published online:
13 February 2023

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