Phosphasalen Indium Complexes Showing High Rates and Isoselectivities in rac‐Lactide Polymerizations

Polylactide (PLA) is the leading bioderived polymer produced commercially by the metal‐catalyzed ring‐opening polymerization of lactide. Control over tacticity to produce stereoblock PLA, from rac‐lactide improves thermal properties but is an outstanding challenge. Here, phosphasalen indium catalyst...

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Autores principales: Myers, Dominic, White, Andrew J. P., Forsyth, Craig M., Bown, Mark, Williams, Charlotte K.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2017
Materias:
Communications
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5434947/
https://www.ncbi.nlm.nih.gov/pubmed/28378455
http://dx.doi.org/10.1002/anie.201701745
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author Myers, Dominic
White, Andrew J. P.
Forsyth, Craig M.
Bown, Mark
Williams, Charlotte K.
author_facet Myers, Dominic
White, Andrew J. P.
Forsyth, Craig M.
Bown, Mark
Williams, Charlotte K.
author_sort Myers, Dominic
collection PubMed
description Polylactide (PLA) is the leading bioderived polymer produced commercially by the metal‐catalyzed ring‐opening polymerization of lactide. Control over tacticity to produce stereoblock PLA, from rac‐lactide improves thermal properties but is an outstanding challenge. Here, phosphasalen indium catalysts feature high rates (30±3 m (−1) min(−1), THF, 298 K), high control, low loadings (0.2 mol %), and isoselectivity (P (i)=0.92, THF, 258 K). Furthermore, the phosphasalen indium catalysts do not require any chiral additives.
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spelling pubmed-54349472017-06-01 Phosphasalen Indium Complexes Showing High Rates and Isoselectivities in rac‐Lactide Polymerizations Myers, Dominic White, Andrew J. P. Forsyth, Craig M. Bown, Mark Williams, Charlotte K. Angew Chem Int Ed Engl Communications Polylactide (PLA) is the leading bioderived polymer produced commercially by the metal‐catalyzed ring‐opening polymerization of lactide. Control over tacticity to produce stereoblock PLA, from rac‐lactide improves thermal properties but is an outstanding challenge. Here, phosphasalen indium catalysts feature high rates (30±3 m (−1) min(−1), THF, 298 K), high control, low loadings (0.2 mol %), and isoselectivity (P (i)=0.92, THF, 258 K). Furthermore, the phosphasalen indium catalysts do not require any chiral additives. John Wiley and Sons Inc. 2017-04-05 2017-05-02 /pmc/articles/PMC5434947/ /pubmed/28378455 http://dx.doi.org/10.1002/anie.201701745 Text en © 2017 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the Creative Commons Attribution (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
Myers, Dominic
White, Andrew J. P.
Forsyth, Craig M.
Bown, Mark
Williams, Charlotte K.
Phosphasalen Indium Complexes Showing High Rates and Isoselectivities in rac‐Lactide Polymerizations
title Phosphasalen Indium Complexes Showing High Rates and Isoselectivities in rac‐Lactide Polymerizations
title_full Phosphasalen Indium Complexes Showing High Rates and Isoselectivities in rac‐Lactide Polymerizations
title_fullStr Phosphasalen Indium Complexes Showing High Rates and Isoselectivities in rac‐Lactide Polymerizations
title_full_unstemmed Phosphasalen Indium Complexes Showing High Rates and Isoselectivities in rac‐Lactide Polymerizations
title_short Phosphasalen Indium Complexes Showing High Rates and Isoselectivities in rac‐Lactide Polymerizations
title_sort phosphasalen indium complexes showing high rates and isoselectivities in rac‐lactide polymerizations
topic Communications
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5434947/
https://www.ncbi.nlm.nih.gov/pubmed/28378455
http://dx.doi.org/10.1002/anie.201701745
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