High-performance vitrimeric benzoxazines for sustainable advanced materials: design, synthesis, and applications

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dc.contributor.authorAnagwu, Festus Ifeanyi
dc.contributor.authorThakur, Vijay Kumar
dc.contributor.authorSkordos, Alexandros A.
dc.date.accessioned2022-11-01T19:47:44Z
dc.date.available2022-11-01T19:47:44Z
dc.date.issued2022-10-26
dc.description.abstractPolybenzoxazines are high-performance materials capable of replacing conventional thermosets such as phenolics, epoxies, and bismaleimides in composites manufacturing due to their excellent thermomechanical and chemical behavior. Their versatility and compatibility with biobased precursors make them an attractive option as composite matrices. Like other thermosets, polybenzoxazines are not recyclable and cannot be reprocessed. Incorporating dynamic bonds in benzoxazine monomers can produce vitrimeric polybenzoxazines, which can potentially overcome this limitation and can be tuned to exhibit smart functionalities such as self-healing and shape memory. Dynamic bond exchange mechanisms for vitrimer development such as transesterification, imine bond, disulfide exchange, transamination, transcarbamoylation, transalkylation, olefin metathesis, transcarbonation, siloxane-silanol exchange, boronic ester, silyl ether exchange, and dioxaborolane metathesis are potentially applicable to benzoxazine chemistry, with disulfide bond and transesterification having successfully vitrimerized benzoxazines with topological transitions at −8.5 and 88 °C, respectively. Benzoxazine vitrimers featuring glass transitions of 193, 224, and 222–236 °C are now known. These place polybenzoxazines at the forefront of the development of reprocessable and recyclable thermosetting polymers and composite matrices.en_UK
dc.identifier.citationAnagwu FI, Thakur VK, Skordos AA. (2023) High-performance vitrimeric benzoxazines for sustainable advanced materials: design, synthesis, and applications. Macromolecular Materials and Engineering, Volume 308, Issue 4, April 2023, Article number 2200534en_UK
dc.identifier.issn1438-7492
dc.identifier.urihttps://doi.org/10.1002/mame.202200534
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/18633
dc.language.isoenen_UK
dc.publisherWileyen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectbenzoxazineen_UK
dc.subjectbond exchangeen_UK
dc.subjectmechanismsen_UK
dc.subjectsustainabilityen_UK
dc.subjectthermosetsen_UK
dc.subjectvitrimersen_UK
dc.titleHigh-performance vitrimeric benzoxazines for sustainable advanced materials: design, synthesis, and applicationsen_UK
dc.typeArticleen_UK

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