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Precise Control of Both Dispersity and Molecular Weight Distribution Shape by Polymer Blending
The breadth and the shape of molecular weight distributions can significantly influence fundamental polymer properties that are critical for various applications. However, current approaches require the extensive synthesis of multiple polymers, are limited in dispersity precision and are typically i...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8456836/ https://www.ncbi.nlm.nih.gov/pubmed/34133078 http://dx.doi.org/10.1002/anie.202106729 |
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author | Whitfield, Richard Truong, Nghia P. Anastasaki, Athina |
author_facet | Whitfield, Richard Truong, Nghia P. Anastasaki, Athina |
author_sort | Whitfield, Richard |
collection | PubMed |
description | The breadth and the shape of molecular weight distributions can significantly influence fundamental polymer properties that are critical for various applications. However, current approaches require the extensive synthesis of multiple polymers, are limited in dispersity precision and are typically incapable of simultaneously controlling both the dispersity and the shape of molecular weight distributions. Here we report a simplified approach, whereby on mixing two polymers (one of high Đ and one of low Đ), any intermediate dispersity value can be obtained (e.g. from 1.08 to 1.84). Unrivalled precision is achieved, with dispersity values obtained to even the nearest 0.01 (e.g. 1.37→1.38→1.39→1.40→1.41→1.42→1.43→1.44→1.45), while maintaining fairly monomodal molecular weight distributions. This approach was also employed to control the shape of molecular weight distributions and to obtain diblock copolymers with high dispersity accuracy. The straightforward nature of our methodology alongside its compatibility with a wide range of polymerisation protocols (e.g. ATRP, RAFT), significantly expands the toolbox of tailored polymeric materials and makes them accessible to all researchers. |
format | Online Article Text |
id | pubmed-8456836 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-84568362021-09-27 Precise Control of Both Dispersity and Molecular Weight Distribution Shape by Polymer Blending Whitfield, Richard Truong, Nghia P. Anastasaki, Athina Angew Chem Int Ed Engl Research Articles The breadth and the shape of molecular weight distributions can significantly influence fundamental polymer properties that are critical for various applications. However, current approaches require the extensive synthesis of multiple polymers, are limited in dispersity precision and are typically incapable of simultaneously controlling both the dispersity and the shape of molecular weight distributions. Here we report a simplified approach, whereby on mixing two polymers (one of high Đ and one of low Đ), any intermediate dispersity value can be obtained (e.g. from 1.08 to 1.84). Unrivalled precision is achieved, with dispersity values obtained to even the nearest 0.01 (e.g. 1.37→1.38→1.39→1.40→1.41→1.42→1.43→1.44→1.45), while maintaining fairly monomodal molecular weight distributions. This approach was also employed to control the shape of molecular weight distributions and to obtain diblock copolymers with high dispersity accuracy. The straightforward nature of our methodology alongside its compatibility with a wide range of polymerisation protocols (e.g. ATRP, RAFT), significantly expands the toolbox of tailored polymeric materials and makes them accessible to all researchers. John Wiley and Sons Inc. 2021-07-21 2021-08-23 /pmc/articles/PMC8456836/ /pubmed/34133078 http://dx.doi.org/10.1002/anie.202106729 Text en © 2021 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH https://creativecommons.org/licenses/by-nc/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ (https://creativecommons.org/licenses/by-nc/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes. |
spellingShingle | Research Articles Whitfield, Richard Truong, Nghia P. Anastasaki, Athina Precise Control of Both Dispersity and Molecular Weight Distribution Shape by Polymer Blending |
title | Precise Control of Both Dispersity and Molecular Weight Distribution Shape by Polymer Blending |
title_full | Precise Control of Both Dispersity and Molecular Weight Distribution Shape by Polymer Blending |
title_fullStr | Precise Control of Both Dispersity and Molecular Weight Distribution Shape by Polymer Blending |
title_full_unstemmed | Precise Control of Both Dispersity and Molecular Weight Distribution Shape by Polymer Blending |
title_short | Precise Control of Both Dispersity and Molecular Weight Distribution Shape by Polymer Blending |
title_sort | precise control of both dispersity and molecular weight distribution shape by polymer blending |
topic | Research Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8456836/ https://www.ncbi.nlm.nih.gov/pubmed/34133078 http://dx.doi.org/10.1002/anie.202106729 |
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