期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 61, 期 48, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202210405
关键词
Creep Resistance; Dynamic Covalent Networks; Fast Reprocessing; Recyclable Thermoset; Vitrimers
资金
- European Research Council (ERC) under the European Union [101021081]
- BOF-UGent
- Research Foundation-Flanders (FWO) [1S49122N]
- European Research Council (ERC) [101021081] Funding Source: European Research Council (ERC)
Dynamic covalent polymer networks are an interesting solution for the recyclability of thermosets and elastomers, but balancing thermal reprocessability and dimensional stability remains a challenge. Disconnecting chemical reactivity at low and high temperatures can achieve creep resistance and high dynamism in polymer networks.
Dynamic covalent polymer networks provide an interesting solution to the challenging recyclability of thermosets and elastomers. One of the remaining design constraints, however, is balancing thermal reprocessability in the form of material flow with dimensional stability during use. As a result, many chemistries are being investigated in order to improve bond reactivity control and material robustness. This Minireview highlights a number of promising concepts, with a particular emphasis on disconnecting chemical reactivity in low and high temperature regimes to obtain creep resistant, yet highly dynamic polymer networks. In addition, we will highlight the impact of sharp reactivity changes when applying extrapolation-based approaches during rheological analysis. As a result, we are confident that abandoning the myth of permanent reactivity will aid in the development of sustainable polymeric materials that can truly combine the benefits of thermoplastic and thermoset behaviour.
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