A strategy for sequence control in vinyl polymers via iterative controlled radical cyclization

Yusuke Hibi, Makoto Ouchi () and Mitsuo Sawamoto ()
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Yusuke Hibi: Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku
Makoto Ouchi: Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku
Mitsuo Sawamoto: Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku

Nature Communications, 2016, vol. 7, issue 1, 1-9

Abstract: Abstract There is a growing interest in sequence-controlled polymers toward advanced functional materials. However, control of side-chain order for vinyl polymers has been lacking feasibility in the field of polymer synthesis because of the inherent feature of chain-growth propagation. Here we show a general and versatile strategy to control sequence in vinyl polymers through iterative radical cyclization with orthogonally cleavable and renewable bonds. The proposed methodology employs a repetitive and iterative intramolecular cyclization via a radical intermediate in a one-time template with a radical-generating site at one end and an alkene end at the other, each of which is connected to a linker via independently cleavable and renewable bonds. The unique design specifically allowed control of radical addition reaction although inherent chain-growth intermediate (radical species) was used, as well as the iterative cycle and functionalization for resultant side chains, to lead to sequence-controlled vinyl polymers (or oligomers).

Date: 2016
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms11064

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DOI: 10.1038/ncomms11064

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