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dc.contributor.authorAl-Baradi, A.M.*
dc.contributor.authorRimmer, Stephen*
dc.contributor.authorCarter, Steven*
dc.contributor.authorde Silva, J.P.*
dc.contributor.authorKing, S.M.*
dc.contributor.authorMaccarini, M.*
dc.contributor.authorFarago, B.*
dc.contributor.authorNoirez, L.*
dc.contributor.authorGeoghegan, M.*
dc.date.accessioned2019-05-28T19:21:39Z
dc.date.accessioned2019-06-10T11:49:01Z
dc.date.available2019-05-28T19:21:39Z
dc.date.available2019-06-10T11:49:01Z
dc.date.issued2018-02
dc.identifier.citationAl-Baradi AM, Rimmer S, Carter SR et al (2018) Temperature-dependent structure and dynamics of highly-branched poly(N -isopropylacrylamide) in aqueous solution. Soft Matter. 14: 1482-1491.en_US
dc.identifier.urihttp://hdl.handle.net/10454/17115
dc.descriptionYesen_US
dc.description.abstractSmall-angle neutron scattering (SANS) and neutron spin-echo (NSE) have been used to investigate the temperature-dependent solution behaviour of highly-branched poly(N-isopropylacrylamide) (HB-PNIPAM). SANS experiments have shown that water is a good solvent for both HB-PNIPAM and a linear PNIPAM control at low temperatures where the small angle scattering is described by a single correlation length model. Increasing the temperature leads to a gradual collapse of HB-PNIPAM until above the lower critical solution temperature (LCST), at which point aggregation occurs, forming disperse spherical particles of up to 60 nm in diameter, independent of the degree of branching. However, SANS from linear PNIPAM above the LCST is described by a model that combines particulate structure and a contribution from solvated chains. NSE was used to study the internal and translational solution dynamics of HB-PNIPAM chains below the LCST. Internal HB-PNIPAM dynamics is described well by the Rouse model for non-entangled chains.en_US
dc.language.isoenen_US
dc.relation.isreferencedbyhttps://doi.org/10.1039/C7SM02330Hen_US
dc.rights© The Royal Society of Chemistry 2018. Reproduced in accordance with the publisher's self-archiving policy.en_US
dc.subjectSmall-angle neutron scattering (SANS)en_US
dc.subjectNeutron spin-echo (NSE)en_US
dc.subjectTemperature-dependent solution behaviouren_US
dc.subjectHighly-branched poly(N-isopropylacrylamide)en_US
dc.subjectAqueous solutionen_US
dc.titleTemperature-dependent structure and dynamics of highly-branched poly(N -isopropylacrylamide) in aqueous solutionen_US
dc.status.refereedYesen_US
dc.date.Accepted2018-01-27
dc.date.application2018-02-05
dc.typeArticleen_US
dc.type.versionAccepted manuscripten_US
dc.date.updated2019-05-28T19:21:46Z
refterms.dateFOA2019-06-12T09:23:49Z


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