Show simple item record

dc.contributor.authorTan, CSY
dc.contributor.authorLiu, J
dc.contributor.authorGroombridge, AS
dc.contributor.authorBarrow, SJ
dc.contributor.authorDreiss, CA
dc.contributor.authorScherman, OA
dc.date.accessioned2018-07-13T11:19:12Z
dc.date.available2018-07-13T11:19:12Z
dc.date.issued2018-01-01
dc.identifier.issn1616-301X
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/278082
dc.description.abstractAttempts to rationally tune the macroscopic mechanical performance of supramolecular hydrogel networks through noncovalent molecular interactions have led to a wide variety of supramolecular materials with desirable functions. While the viscoelastic properties are dominated by temporal hierarchy (crosslinking kinetics), direct mechanistic studies on spatiotemporal control of supramolecular hydrogel networks, based on host-guest chemistry, have not yet been established. Here, supramolecular hydrogel networks assembled from highly branched cucurbit[8]uril-threaded polyrotaxanes (HBP-CB[8] ) and naphthyl-functionalized hydroxyethyl cellulose (HECNp) are reported, exploiting the CB[8] host-guest complexation. Mechanically locking CB[8] host molecules onto a highly branched hydrophilic polymer backbone, through selective binary complexation with viologen derivatives, dramatically increases the solubility of CB[8]. Additionally, the branched architecture enables tuning of material dynamics of the supramolecular hydrogel networks via both topological (spatial hierarchy) and kinetic (temporal hierarchy) control. Relationship between macroscopic properties (time- and temperature-dependent rheological properties, thermal stability, and reversibility), spatiotemporal hierarchy, and chain dynamics of the highly branched polyrotaxane hydrogel networks is investigated in detail. Such kind of tuning of material mechanics through spatiotemporal hierarchy improves our understanding of the challenging relationship between design of supramolecular polymeric materials and their complex viscoelasticity, and also highlights a facile strategy to engineer dynamic supramolecular materials.
dc.description.sponsorshipMinistry of Education of Malaysia and Universiti Teknologi MARA, Marie Curie Fellowship. Grant Number: 658360
dc.languageeng
dc.publisherWiley
dc.subjectcucurbit[n]uril
dc.subjecthighly branched polymers
dc.subjectspatiotemporal networks
dc.subjectsupramolecular hydrogels
dc.subjectviscoelasticity
dc.titleControlling Spatiotemporal Mechanics of Supramolecular Hydrogel Networks with Highly Branched Cucurbit[8]uril Polyrotaxanes
dc.typeArticle
prism.issueIdentifier7
prism.number1702994
prism.publicationDate2018
prism.publicationNameAdvanced Functional Materials
prism.volume28
dc.identifier.doi10.17863/CAM.25417
dcterms.dateAccepted2017-10-23
rioxxterms.versionofrecord10.1002/adfm.201702994
rioxxterms.versionAM
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2018-01-01
dc.contributor.orcidLiu, Ji [0000-0001-7171-405X]
dc.contributor.orcidGroombridge, Alexander [0000-0003-1917-7909]
dc.contributor.orcidScherman, Oren [0000-0001-8032-7166]
dc.identifier.eissn1616-3028
dc.publisher.urlhttps://onlinelibrary.wiley.com/doi/abs/10.1002/adfm.201702994
rioxxterms.typeJournal Article/Review
pubs.funder-project-idEuropean Commission (607602)
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/G037221/1)
pubs.funder-project-idEPSRC (1352698)
pubs.funder-project-idEuropean Research Council (240629)
pubs.funder-project-idEuropean Commission (658360)
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/L027151/1)
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/G060649/1)
cam.issuedOnline2017-12-15
datacite.issupplementedby.doi10.1002/adfm.201702994
rioxxterms.freetoread.startdate2018-12-15


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record