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Chain-End-Functionalized Polyphosphazenes via a One-Pot Phosphine-Mediated Living Polymerization

A simple polymerization of trichlorophosphoranimine (Cl(3)P = N−SiMe(3)) mediated by functionalized triphenylphosphines is presented. In situ initiator formation and the subsequent polymerization progress are investigated by (31)P NMR spectroscopy, demonstrating a living cationic polymerization mech...

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Autores principales: Wilfert, Sandra, Henke, Helena, Schoefberger, Wolfgang, Brüggemann, Oliver, Teasdale, Ian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BlackWell Publishing Ltd 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4115175/
https://www.ncbi.nlm.nih.gov/pubmed/24700544
http://dx.doi.org/10.1002/marc.201400114
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author Wilfert, Sandra
Henke, Helena
Schoefberger, Wolfgang
Brüggemann, Oliver
Teasdale, Ian
author_facet Wilfert, Sandra
Henke, Helena
Schoefberger, Wolfgang
Brüggemann, Oliver
Teasdale, Ian
author_sort Wilfert, Sandra
collection PubMed
description A simple polymerization of trichlorophosphoranimine (Cl(3)P = N−SiMe(3)) mediated by functionalized triphenylphosphines is presented. In situ initiator formation and the subsequent polymerization progress are investigated by (31)P NMR spectroscopy, demonstrating a living cationic polymerization mechanism. The polymer chain lengths and molecular weights of the resulting substituted poly(organo)phosphazenes are further studied by (1)H NMR spectroscopy and size exclusion chromatography. This strategy facilitates the preparation of polyphosphazenes with controlled molecular weights and specific functional groups at the α-chain end. Such well-defined, mono-end-functionalized polymers have great potential use in bioconjugation, surface modification, and as building blocks for complex macromolecular constructs. [Image: see text]
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spelling pubmed-41151752014-07-30 Chain-End-Functionalized Polyphosphazenes via a One-Pot Phosphine-Mediated Living Polymerization Wilfert, Sandra Henke, Helena Schoefberger, Wolfgang Brüggemann, Oliver Teasdale, Ian Macromol Rapid Commun Communications A simple polymerization of trichlorophosphoranimine (Cl(3)P = N−SiMe(3)) mediated by functionalized triphenylphosphines is presented. In situ initiator formation and the subsequent polymerization progress are investigated by (31)P NMR spectroscopy, demonstrating a living cationic polymerization mechanism. The polymer chain lengths and molecular weights of the resulting substituted poly(organo)phosphazenes are further studied by (1)H NMR spectroscopy and size exclusion chromatography. This strategy facilitates the preparation of polyphosphazenes with controlled molecular weights and specific functional groups at the α-chain end. Such well-defined, mono-end-functionalized polymers have great potential use in bioconjugation, surface modification, and as building blocks for complex macromolecular constructs. [Image: see text] BlackWell Publishing Ltd 2014-06 2014-04-04 /pmc/articles/PMC4115175/ /pubmed/24700544 http://dx.doi.org/10.1002/marc.201400114 Text en © 2014 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim http://creativecommons.org/licenses/by-nc-nd/3.0/ This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.
spellingShingle Communications
Wilfert, Sandra
Henke, Helena
Schoefberger, Wolfgang
Brüggemann, Oliver
Teasdale, Ian
Chain-End-Functionalized Polyphosphazenes via a One-Pot Phosphine-Mediated Living Polymerization
title Chain-End-Functionalized Polyphosphazenes via a One-Pot Phosphine-Mediated Living Polymerization
title_full Chain-End-Functionalized Polyphosphazenes via a One-Pot Phosphine-Mediated Living Polymerization
title_fullStr Chain-End-Functionalized Polyphosphazenes via a One-Pot Phosphine-Mediated Living Polymerization
title_full_unstemmed Chain-End-Functionalized Polyphosphazenes via a One-Pot Phosphine-Mediated Living Polymerization
title_short Chain-End-Functionalized Polyphosphazenes via a One-Pot Phosphine-Mediated Living Polymerization
title_sort chain-end-functionalized polyphosphazenes via a one-pot phosphine-mediated living polymerization
topic Communications
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4115175/
https://www.ncbi.nlm.nih.gov/pubmed/24700544
http://dx.doi.org/10.1002/marc.201400114
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