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Reversing Adhesion: A Triggered Release Self‐Reporting Adhesive

Here, the development of an adhesive is reported – generated via free radical polymerization – which can be degraded upon thermal impact within minutes. The degradation is based on a stimuli responsive moiety (SRM) that is incorporated into the network. The selected SRM is a hetero Diels‐Alder (HDA)...

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Autores principales: Schenzel, Alexander M., Klein, Christopher, Rist, Kai, Moszner, Norbert, Barner‐Kowollik, Christopher
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5067662/
https://www.ncbi.nlm.nih.gov/pubmed/27812461
http://dx.doi.org/10.1002/advs.201500361
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author Schenzel, Alexander M.
Klein, Christopher
Rist, Kai
Moszner, Norbert
Barner‐Kowollik, Christopher
author_facet Schenzel, Alexander M.
Klein, Christopher
Rist, Kai
Moszner, Norbert
Barner‐Kowollik, Christopher
author_sort Schenzel, Alexander M.
collection PubMed
description Here, the development of an adhesive is reported – generated via free radical polymerization – which can be degraded upon thermal impact within minutes. The degradation is based on a stimuli responsive moiety (SRM) that is incorporated into the network. The selected SRM is a hetero Diels‐Alder (HDA) moiety that features three key properties. First, the adhesive can be degraded at relatively low temperatures (≈80 °C), second the degradation occurs very rapidly (less than 3 min), and third, the degradation of the network can readily be analyzed and quantified due to its self‐reporting nature. The new reversible self‐reporting adhesion system is characterized in detail starting from molecular studies of the retro HDA reaction. Moreover, the mechanical properties of the network, as well as the adhesion forces, are investigated in detail and compared to common methacrylate‐based systems, demonstrating a significant decrease in mechanic stability at elevated temperatures. The current study thus represents a significant advance of the current state of the art for debonding on demand adhesives, making the system interesting for several fields of application including dental adhesives.
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spelling pubmed-50676622016-11-01 Reversing Adhesion: A Triggered Release Self‐Reporting Adhesive Schenzel, Alexander M. Klein, Christopher Rist, Kai Moszner, Norbert Barner‐Kowollik, Christopher Adv Sci (Weinh) Full Papers Here, the development of an adhesive is reported – generated via free radical polymerization – which can be degraded upon thermal impact within minutes. The degradation is based on a stimuli responsive moiety (SRM) that is incorporated into the network. The selected SRM is a hetero Diels‐Alder (HDA) moiety that features three key properties. First, the adhesive can be degraded at relatively low temperatures (≈80 °C), second the degradation occurs very rapidly (less than 3 min), and third, the degradation of the network can readily be analyzed and quantified due to its self‐reporting nature. The new reversible self‐reporting adhesion system is characterized in detail starting from molecular studies of the retro HDA reaction. Moreover, the mechanical properties of the network, as well as the adhesion forces, are investigated in detail and compared to common methacrylate‐based systems, demonstrating a significant decrease in mechanic stability at elevated temperatures. The current study thus represents a significant advance of the current state of the art for debonding on demand adhesives, making the system interesting for several fields of application including dental adhesives. John Wiley and Sons Inc. 2016-02-02 /pmc/articles/PMC5067662/ /pubmed/27812461 http://dx.doi.org/10.1002/advs.201500361 Text en © 2016 The Authors. Published by WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim 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 Full Papers
Schenzel, Alexander M.
Klein, Christopher
Rist, Kai
Moszner, Norbert
Barner‐Kowollik, Christopher
Reversing Adhesion: A Triggered Release Self‐Reporting Adhesive
title Reversing Adhesion: A Triggered Release Self‐Reporting Adhesive
title_full Reversing Adhesion: A Triggered Release Self‐Reporting Adhesive
title_fullStr Reversing Adhesion: A Triggered Release Self‐Reporting Adhesive
title_full_unstemmed Reversing Adhesion: A Triggered Release Self‐Reporting Adhesive
title_short Reversing Adhesion: A Triggered Release Self‐Reporting Adhesive
title_sort reversing adhesion: a triggered release self‐reporting adhesive
topic Full Papers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5067662/
https://www.ncbi.nlm.nih.gov/pubmed/27812461
http://dx.doi.org/10.1002/advs.201500361
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