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Abstract
One way to obtain recyclable polymeric materials is to include reversible bonds in polymers. Herein, we study the reversibility of the oxa-Michael reaction and explore its scope and limitations in simple model systems and further in linear polymers as well as in polymer networks. The results show that the retro oxa-Michael reaction of sulfone, acrylate or acrylonitrile based adducts is considerably fast at elevated temperatures (>100 °C) if Brønsted bases (e.g. KOH) are used as catalysts. Under these conditions, alcohols can easily be exchanged in oxa-Michael adducts within minutes. Furthermore, poly(ether)s derived from oxa-Michael reactions can be depolymerized into small fragments in the presence of alcohols and show self-healing characteristics in networks.
Original language | English |
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Pages (from-to) | 651-661 |
Number of pages | 11 |
Journal | Polymer Chemistry |
Volume | 14 |
Issue number | 5 |
DOIs | |
Publication status | Published - 4 Jan 2023 |
ASJC Scopus subject areas
- Bioengineering
- Polymers and Plastics
- Biochemistry
- Organic Chemistry
Fields of Expertise
- Advanced Materials Science
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