University Library
  • Login
A gateway to Melbourne's research publications
Minerva Access is the University's Institutional Repository. It aims to collect, preserve, and showcase the intellectual output of staff and students of the University of Melbourne for a global audience.
View Item 
  • Minerva Access
  • Engineering and Information Technology
  • Chemical and Biomolecular Engineering
  • Chemical and Biomolecular Engineering - Research Publications
  • View Item
  • Minerva Access
  • Engineering and Information Technology
  • Chemical and Biomolecular Engineering
  • Chemical and Biomolecular Engineering - Research Publications
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

    Regulating Color Activation Energy of Mechanophore-Linked Multinetwork Elastomers

    Thumbnail
    Citations
    Scopus
    Altmetric
    3
    Author
    Qiu, W; Gurr, PA; Qiao, GG
    Date
    2020-05-26
    Source Title
    Macromolecules
    Publisher
    American Chemical Society
    University of Melbourne Author/s
    Gurr, Paul; Qiao, Greg; Qiu, Wenlian
    Affiliation
    Chemical and Biomolecular Engineering
    Metadata
    Show full item record
    Document Type
    Journal Article
    Citations
    Qiu, 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.
    Access Status
    This item is embargoed and will be available on 2021-05-26
    URI
    http://hdl.handle.net/11343/258690
    DOI
    10.1021/acs.macromol.0c00477
    Abstract
    To 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.

    Export Reference in RIS Format     

    Endnote

    • Click on "Export Reference in RIS Format" and choose "open with... Endnote".

    Refworks

    • Click on "Export Reference in RIS Format". Login to Refworks, go to References => Import References


    Collections
    • Minerva Elements Records [53102]
    • Chemical and Biomolecular Engineering - Research Publications [654]
    Minerva AccessDepositing Your Work (for University of Melbourne Staff and Students)NewsFAQs

    BrowseCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects
    My AccountLoginRegister
    StatisticsMost Popular ItemsStatistics by CountryMost Popular Authors