Isoselective Lactide Ring Opening Polymerisation using [2]Rotaxane Catalysts

Polylactide (PLA) is a fully biodegradable and recyclable plastic, produced from a bio‐derived monomer: it is a circular economy plastic. Its properties depend upon its stereochemistry and isotactic PLA shows superior thermal‐mechanical performances. Here, a new means to control tacticity by exploit...

Descripción completa

Detalles Bibliográficos
Autores principales: Lim, Jason Y. C., Yuntawattana, Nattawut, Beer, Paul D., Williams, Charlotte K.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2019
Materias:
Communications
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6519244/
https://www.ncbi.nlm.nih.gov/pubmed/30861303
http://dx.doi.org/10.1002/anie.201901592
_version_ 1783418606411841536
author Lim, Jason Y. C.
Yuntawattana, Nattawut
Beer, Paul D.
Williams, Charlotte K.
author_facet Lim, Jason Y. C.
Yuntawattana, Nattawut
Beer, Paul D.
Williams, Charlotte K.
author_sort Lim, Jason Y. C.
collection PubMed
description Polylactide (PLA) is a fully biodegradable and recyclable plastic, produced from a bio‐derived monomer: it is a circular economy plastic. Its properties depend upon its stereochemistry and isotactic PLA shows superior thermal‐mechanical performances. Here, a new means to control tacticity by exploiting rotaxane conformational dynamism is described. Dynamic achiral [2]rotaxanes can show high isoselectivity (P(i)=0.8, 298 K) without requiring any chiral additives and enchain by a chain end control mechanism. The organocatalytic dynamic stereoselectivity is likely applicable to other small‐molecule and polymerization catalyses.
format Online
Article
Text
id pubmed-6519244
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher John Wiley and Sons Inc.
record_format MEDLINE/PubMed
spelling pubmed-65192442019-05-21 Isoselective Lactide Ring Opening Polymerisation using [2]Rotaxane Catalysts Lim, Jason Y. C. Yuntawattana, Nattawut Beer, Paul D. Williams, Charlotte K. Angew Chem Int Ed Engl Communications Polylactide (PLA) is a fully biodegradable and recyclable plastic, produced from a bio‐derived monomer: it is a circular economy plastic. Its properties depend upon its stereochemistry and isotactic PLA shows superior thermal‐mechanical performances. Here, a new means to control tacticity by exploiting rotaxane conformational dynamism is described. Dynamic achiral [2]rotaxanes can show high isoselectivity (P(i)=0.8, 298 K) without requiring any chiral additives and enchain by a chain end control mechanism. The organocatalytic dynamic stereoselectivity is likely applicable to other small‐molecule and polymerization catalyses. John Wiley and Sons Inc. 2019-03-28 2019-04-23 /pmc/articles/PMC6519244/ /pubmed/30861303 http://dx.doi.org/10.1002/anie.201901592 Text en © 2019 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Communications
Lim, Jason Y. C.
Yuntawattana, Nattawut
Beer, Paul D.
Williams, Charlotte K.
Isoselective Lactide Ring Opening Polymerisation using [2]Rotaxane Catalysts
title Isoselective Lactide Ring Opening Polymerisation using [2]Rotaxane Catalysts
title_full Isoselective Lactide Ring Opening Polymerisation using [2]Rotaxane Catalysts
title_fullStr Isoselective Lactide Ring Opening Polymerisation using [2]Rotaxane Catalysts
title_full_unstemmed Isoselective Lactide Ring Opening Polymerisation using [2]Rotaxane Catalysts
title_short Isoselective Lactide Ring Opening Polymerisation using [2]Rotaxane Catalysts
title_sort isoselective lactide ring opening polymerisation using [2]rotaxane catalysts
topic Communications
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6519244/
https://www.ncbi.nlm.nih.gov/pubmed/30861303
http://dx.doi.org/10.1002/anie.201901592
work_keys_str_mv AT limjasonyc isoselectivelactideringopeningpolymerisationusing2rotaxanecatalysts
AT yuntawattananattawut isoselectivelactideringopeningpolymerisationusing2rotaxanecatalysts
AT beerpauld isoselectivelactideringopeningpolymerisationusing2rotaxanecatalysts
AT williamscharlottek isoselectivelactideringopeningpolymerisationusing2rotaxanecatalysts

Ejemplares similares