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Inverse Vulcanization of Norbornenylsilanes: Soluble Polymers with Controllable Molecular Properties via Siloxane Bonds

The inverse vulcanization produces high sulfur content polymers from alkenes and elemental sulfur. Control over properties such as the molar mass or the solubility of polymers is not well established, and existing strategies lack predictability or require large variations of the composition. Systema...

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Autores principales: Scheiger, Johannes M., Hoffmann, Maxi, Falkenstein, Patricia, Wang, Zhenwu, Rutschmann, Mark, Scheiger, Valentin W., Grimm, Alexander, Urbschat, Klara, Sengpiel, Tobias, Matysik, Jörg, Wilhelm, Manfred, Levkin, Pavel A., Theato, Patrick
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9302686/
https://www.ncbi.nlm.nih.gov/pubmed/35068039
http://dx.doi.org/10.1002/anie.202114896
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author Scheiger, Johannes M.
Hoffmann, Maxi
Falkenstein, Patricia
Wang, Zhenwu
Rutschmann, Mark
Scheiger, Valentin W.
Grimm, Alexander
Urbschat, Klara
Sengpiel, Tobias
Matysik, Jörg
Wilhelm, Manfred
Levkin, Pavel A.
Theato, Patrick
author_facet Scheiger, Johannes M.
Hoffmann, Maxi
Falkenstein, Patricia
Wang, Zhenwu
Rutschmann, Mark
Scheiger, Valentin W.
Grimm, Alexander
Urbschat, Klara
Sengpiel, Tobias
Matysik, Jörg
Wilhelm, Manfred
Levkin, Pavel A.
Theato, Patrick
author_sort Scheiger, Johannes M.
collection PubMed
description The inverse vulcanization produces high sulfur content polymers from alkenes and elemental sulfur. Control over properties such as the molar mass or the solubility of polymers is not well established, and existing strategies lack predictability or require large variations of the composition. Systematic design principles are sought to allow for a targeted design of materials. Herein, we report on the inverse vulcanization of norbornenylsilanes (NBS), with a different number of hydrolysable groups at the silicon atom. Inverse vulcanization of mixtures of NBS followed by polycondensation yielded soluble high sulfur content copolymers (50 wt % S) with controllable weight average molar mass (M(W)), polydispersity (Đ), glass transition temperature (T (G)), or zero‐shear viscosity (η (0)). Polycondensation was conducted in the melt with HCl as a catalyst, abolishing the need for a solvent. Purification by precipitation afforded polymers with a greatly reduced amount of low molar mass species.
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spelling pubmed-93026862022-07-22 Inverse Vulcanization of Norbornenylsilanes: Soluble Polymers with Controllable Molecular Properties via Siloxane Bonds Scheiger, Johannes M. Hoffmann, Maxi Falkenstein, Patricia Wang, Zhenwu Rutschmann, Mark Scheiger, Valentin W. Grimm, Alexander Urbschat, Klara Sengpiel, Tobias Matysik, Jörg Wilhelm, Manfred Levkin, Pavel A. Theato, Patrick Angew Chem Int Ed Engl Research Articles The inverse vulcanization produces high sulfur content polymers from alkenes and elemental sulfur. Control over properties such as the molar mass or the solubility of polymers is not well established, and existing strategies lack predictability or require large variations of the composition. Systematic design principles are sought to allow for a targeted design of materials. Herein, we report on the inverse vulcanization of norbornenylsilanes (NBS), with a different number of hydrolysable groups at the silicon atom. Inverse vulcanization of mixtures of NBS followed by polycondensation yielded soluble high sulfur content copolymers (50 wt % S) with controllable weight average molar mass (M(W)), polydispersity (Đ), glass transition temperature (T (G)), or zero‐shear viscosity (η (0)). Polycondensation was conducted in the melt with HCl as a catalyst, abolishing the need for a solvent. Purification by precipitation afforded polymers with a greatly reduced amount of low molar mass species. John Wiley and Sons Inc. 2022-02-23 2022-04-11 /pmc/articles/PMC9302686/ /pubmed/35068039 http://dx.doi.org/10.1002/anie.202114896 Text en © 2022 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
Scheiger, Johannes M.
Hoffmann, Maxi
Falkenstein, Patricia
Wang, Zhenwu
Rutschmann, Mark
Scheiger, Valentin W.
Grimm, Alexander
Urbschat, Klara
Sengpiel, Tobias
Matysik, Jörg
Wilhelm, Manfred
Levkin, Pavel A.
Theato, Patrick
Inverse Vulcanization of Norbornenylsilanes: Soluble Polymers with Controllable Molecular Properties via Siloxane Bonds
title Inverse Vulcanization of Norbornenylsilanes: Soluble Polymers with Controllable Molecular Properties via Siloxane Bonds
title_full Inverse Vulcanization of Norbornenylsilanes: Soluble Polymers with Controllable Molecular Properties via Siloxane Bonds
title_fullStr Inverse Vulcanization of Norbornenylsilanes: Soluble Polymers with Controllable Molecular Properties via Siloxane Bonds
title_full_unstemmed Inverse Vulcanization of Norbornenylsilanes: Soluble Polymers with Controllable Molecular Properties via Siloxane Bonds
title_short Inverse Vulcanization of Norbornenylsilanes: Soluble Polymers with Controllable Molecular Properties via Siloxane Bonds
title_sort inverse vulcanization of norbornenylsilanes: soluble polymers with controllable molecular properties via siloxane bonds
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9302686/
https://www.ncbi.nlm.nih.gov/pubmed/35068039
http://dx.doi.org/10.1002/anie.202114896
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