Polyphosphinoborane Block Copolymer Synthesis Using Catalytic Reversible Chain‐Transfer Dehydropolymerization

An amphiphilic block copolymer of polyphosphinoborane has been prepared by a mechanism‐led strategy of the sequential catalytic dehydropolymerization of precursor monomers, H(3)B ⋅ PRH(2) (R=Ph, n‐hexyl), using the simple pre‐catalyst [Rh(Ph(2)PCH(2)CH(2)PPh(2))(2)]Cl. Speciation, mechanism and poly...

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Autores principales: Race, James J., Heyam, Alex, Wiebe, Matthew A., Diego‐Garcia Hernandez, J., Ellis, Charlotte E., Lei, Shixing, Manners, Ian, Weller, Andrew S.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2022
Materias:
Research Articles
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10107156/
https://www.ncbi.nlm.nih.gov/pubmed/36394131
http://dx.doi.org/10.1002/anie.202216106
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author Race, James J.
Heyam, Alex
Wiebe, Matthew A.
Diego‐Garcia Hernandez, J.
Ellis, Charlotte E.
Lei, Shixing
Manners, Ian
Weller, Andrew S.
author_facet Race, James J.
Heyam, Alex
Wiebe, Matthew A.
Diego‐Garcia Hernandez, J.
Ellis, Charlotte E.
Lei, Shixing
Manners, Ian
Weller, Andrew S.
author_sort Race, James J.
collection PubMed
description An amphiphilic block copolymer of polyphosphinoborane has been prepared by a mechanism‐led strategy of the sequential catalytic dehydropolymerization of precursor monomers, H(3)B ⋅ PRH(2) (R=Ph, n‐hexyl), using the simple pre‐catalyst [Rh(Ph(2)PCH(2)CH(2)PPh(2))(2)]Cl. Speciation, mechanism and polymer chain growth studies support a step‐growth process where reversible chain transfer occurs, i.e. H(3)B ⋅ PRH(2)/oligomer/polymer can all coordinate with, and be activated by, the catalyst. Block copolymer [H(2)BPPhH](110)‐b‐[H(2)BP(n‐hexyl)H](11) can be synthesized and self‐assembles in solution to form either rod‐like micelles or vesicles depending on solvent polarity.
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spelling pubmed-101071562023-04-18 Polyphosphinoborane Block Copolymer Synthesis Using Catalytic Reversible Chain‐Transfer Dehydropolymerization Race, James J. Heyam, Alex Wiebe, Matthew A. Diego‐Garcia Hernandez, J. Ellis, Charlotte E. Lei, Shixing Manners, Ian Weller, Andrew S. Angew Chem Int Ed Engl Research Articles An amphiphilic block copolymer of polyphosphinoborane has been prepared by a mechanism‐led strategy of the sequential catalytic dehydropolymerization of precursor monomers, H(3)B ⋅ PRH(2) (R=Ph, n‐hexyl), using the simple pre‐catalyst [Rh(Ph(2)PCH(2)CH(2)PPh(2))(2)]Cl. Speciation, mechanism and polymer chain growth studies support a step‐growth process where reversible chain transfer occurs, i.e. H(3)B ⋅ PRH(2)/oligomer/polymer can all coordinate with, and be activated by, the catalyst. Block copolymer [H(2)BPPhH](110)‐b‐[H(2)BP(n‐hexyl)H](11) can be synthesized and self‐assembles in solution to form either rod‐like micelles or vesicles depending on solvent polarity. John Wiley and Sons Inc. 2022-12-08 2023-01-16 /pmc/articles/PMC10107156/ /pubmed/36394131 http://dx.doi.org/10.1002/anie.202216106 Text en © 2022 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Articles
Race, James J.
Heyam, Alex
Wiebe, Matthew A.
Diego‐Garcia Hernandez, J.
Ellis, Charlotte E.
Lei, Shixing
Manners, Ian
Weller, Andrew S.
Polyphosphinoborane Block Copolymer Synthesis Using Catalytic Reversible Chain‐Transfer Dehydropolymerization
title Polyphosphinoborane Block Copolymer Synthesis Using Catalytic Reversible Chain‐Transfer Dehydropolymerization
title_full Polyphosphinoborane Block Copolymer Synthesis Using Catalytic Reversible Chain‐Transfer Dehydropolymerization
title_fullStr Polyphosphinoborane Block Copolymer Synthesis Using Catalytic Reversible Chain‐Transfer Dehydropolymerization
title_full_unstemmed Polyphosphinoborane Block Copolymer Synthesis Using Catalytic Reversible Chain‐Transfer Dehydropolymerization
title_short Polyphosphinoborane Block Copolymer Synthesis Using Catalytic Reversible Chain‐Transfer Dehydropolymerization
title_sort polyphosphinoborane block copolymer synthesis using catalytic reversible chain‐transfer dehydropolymerization
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10107156/
https://www.ncbi.nlm.nih.gov/pubmed/36394131
http://dx.doi.org/10.1002/anie.202216106
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