Concurrent control over sequence and dispersity in multiblock copolymers



Credit: ETH.

The results of a simple way to regulate dispersity and sequence in multiblock copolymers have been published in Nature Chemistry.

The goal of controlling the sequence and dispersity of synthetic macromolecules is a major goal in the field. Synthetic approaches that can control both sequence and dispersity are not feasible.

In this contribution from the group at Polymeric Materials we present a simple, one pot and rapid synthesis of sequence-controlled multiblocks with on-demand control over dispersity while maintaining a high livingness, and good agreement between theoretical and experimental molecular weights and quantitative yields. The preparation of multiblocks with gradually ascending and descending values is possible with the regulation of the chain transfer agent during a controlled radical polymerization. The potential of our methodology is demonstrated through the synthesis of highly ordered pentablock, octablock and decablock copolymers, which yield multiblocks with concurrent control over both sequence and dispersity.

We are very grateful for the support we have received from our collaborators at Monash University and CNRS.

Maria-Nefeli Antonopoulou and her colleagues have more information about concurrent control over sequence and dispersity in multiblock copolymers. There is a DOI titled " 10.1038/s41557-021-00818-8".

Concurrent control over sequence and dispersity in multiblock copolymers was retrieved on December 7, 2021.

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