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dc.contributor.authorQiu, W
dc.contributor.authorGurr, PA
dc.contributor.authorQiao, GG
dc.date.accessioned2021-01-14T04:53:05Z
dc.date.available2021-01-14T04:53:05Z
dc.date.issued2020-05-26
dc.identifier.citationQiu, W., Gurr, P. A. & Qiao, G. G. (2020). Regulating Color Activation Energy of Mechanophore-Linked Multinetwork Elastomers. Macromolecules, 53 (10), pp.4090-4098. https://doi.org/10.1021/acs.macromol.0c00477.
dc.identifier.issn0024-9297
dc.identifier.urihttp://hdl.handle.net/11343/258690
dc.description.abstractTo lower color activation stress/strain while maintaining excellent mechanical properties for mechanochromic materials has been a challenge. Here, a structure of multinetwork polyacrylates was adopted to incorporate a widely studied mechanophore, spiropyran (SP), to investigate the regulation of mechanochromic sensitivity by varying network compositions. In situ color channel intensity analysis was used to characterize deformation-induced ring-opening of SP to merocyanine (MC) for color changes. The multinetwork strategy could substantially reduce the onset of mechanochromic activation strain and stress, and the resulted double networks and triple networks exhibited remarkable mechanochromic performance with excellent mechanical properties. The network formation conditions, including solvent ratio and type of monomers, were shown to have great impact on regulating the mechanochromic activities. A triple-network sample achieved the lowest macroscopic color activation energy compared to previously reported SP-linked elastomers. In addition, the ratio of SP to MC conversion activated by stretching was first shown higher than that by UV light.
dc.languageEnglish
dc.publisherAmerican Chemical Society
dc.titleRegulating Color Activation Energy of Mechanophore-Linked Multinetwork Elastomers
dc.typeJournal Article
dc.identifier.doi10.1021/acs.macromol.0c00477
melbourne.affiliation.departmentChemical and Biomolecular Engineering
melbourne.source.titleMacromolecules
melbourne.source.volume53
melbourne.source.issue10
melbourne.source.pages4090-4098
melbourne.identifier.arcIH120100053
melbourne.elementsid1451542
melbourne.internal.embargodate2021-05-26
melbourne.contributor.authorGurr, Paul
melbourne.contributor.authorQiao, Greg
melbourne.contributor.authorQiu, Wenlian
dc.identifier.eissn1520-5835
melbourne.identifier.fundernameidMONDELEZ AUSTRALIA PTY LTD, IH120100053
melbourne.identifier.fundernameidAustralian Research Council, IH120100053
melbourne.accessrightsOpen Access


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