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dc.contributor.authorLin, Xueyan
dc.contributor.authorZou, Weike
dc.contributor.authorTerentjev, Eugene M
dc.date.accessioned2022-06-17T01:21:01Z
dc.date.available2022-06-17T01:21:01Z
dc.date.issued2022-01-28
dc.identifier.issn0024-9297
dc.identifier.other35572091
dc.identifier.otherPMC9097525
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/338186
dc.description.abstractLiquid-crystalline elastomers (LCEs) are frequently used in soft actuator development. However, applications are limited because LCEs are prone to mechanical failure when subjected to heavy loads and high temperatures during the working cycle. A mechanically tough LCE system offers larger work capacity and lower failure rate for the actuators. Herein, we adopt the double-network strategy, starting with a siloxane-based exchangeable LCE and developing a series of double-network liquid-crystalline elastomers (DN-LCEs) that are mechanically tougher than the initial elastomer. We incorporate diacrylate reacting monomers to fabricate DN-LCEs, some of which have the breaking stress of 40 MPa. We incorporate thermoplastic polyurethane to fabricate a DN-LCE, achieving an enormous ductility of 90 MJ/m<sup>3</sup>. We have also attempted to utilize the aza-Michael chemistry to make a DN-LCE that retains high plasticity because of several bond-exchange mechanisms; however, it failed to produce a stable reprocessable LCE system using conventional ester-based reactive mesogens. Each of these DN-LCEs exhibits unique features and characteristics, which are compared and discussed.
dc.languageeng
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.sourceessn: 1520-5835
dc.sourcenlmid: 0365316
dc.titleDouble Networks of Liquid-Crystalline Elastomers with Enhanced Mechanical Strength.
dc.typeArticle
dc.date.updated2022-06-17T01:21:01Z
prism.endingPage820
prism.issueIdentifier3
prism.publicationNameMacromolecules
prism.startingPage810
prism.volume55
dc.identifier.doi10.17863/CAM.85597
rioxxterms.versionofrecord10.1021/acs.macromol.1c02065
rioxxterms.versionVoR
rioxxterms.licenseref.urihttps://creativecommons.org/licenses/by/4.0/
dc.contributor.orcidTerentjev, Eugene M [0000-0003-3517-6578]
pubs.funder-project-idEuropean Research Council (768659)


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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International