Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/5887
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dc.contributor.authorLien, Lilyen
dc.contributor.authorFellows, Christopheren
dc.contributor.authorCopeland, Lachlanen
dc.contributor.authorHawkett, Brian Sen
dc.contributor.authorGilbert, Robert Gen
dc.date.accessioned2010-05-14T14:56:00Z
dc.date.issued2002en
dc.identifier.citationAustralian Journal of Chemistry, 55(8), p. 507-512en
dc.identifier.issn0004-9425en
dc.identifier.issn1445-0038en
dc.identifier.urihttps://hdl.handle.net/1959.11/5887en
dc.description.abstractThe measurement and interpretation of isotherms for sorption of water onto, and oxygen permeability of, polymer substrates are important for designing polymers in applications such as agricultural seed coatings. In a preliminary study of water sorption in the commonly used copolymer poly(vinyl alcohol-'co'-vinyl acetate), moisture sorption isotherms were measured for a series of substrates of different comonomer composition at 25°C. The data were fitted to the D'Arcy-Watt model, which gave physically reasonable values for parameters related to the strength of monolayer adsorption to high affinity sites on the substrate and the number of sites for secondary water adsorption per unit mass. The oxygen permeability of poly(vinyl alcohol) films was found to be a function only of the water content of the films, with no other obvious contributing factors. Marked differences were seen in the populations of 'bound' and 'unbound' water characterized by ¹H nuclear magnetic resonance (NMR) spectroscopy and moisture sorption isotherm fitting. There was no correlation of oxygen permeability with 'bound' or 'unbound' water measured by any means, a fact suggesting that there is a continuum of water environments within the materials.en
dc.languageenen
dc.publisherCSIRO Publishingen
dc.relation.ispartofAustralian Journal of Chemistryen
dc.titleWater-binding and oxygen permeability in poly(vinyl alcohol) filmsen
dc.typeJournal Articleen
dc.identifier.doi10.1071/CH02007en
dc.subject.keywordsPhysical Chemistry of Materialsen
local.contributor.firstnameLilyen
local.contributor.firstnameChristopheren
local.contributor.firstnameLachlanen
local.contributor.firstnameBrian Sen
local.contributor.firstnameRobert Gen
local.subject.for2008030304 Physical Chemistry of Materialsen
local.subject.seo2008870303 Polymeric Materials (e.g. Paints)en
local.profile.schoolSchool of Science and Technologyen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailcfellows@une.edu.auen
local.profile.emaillcopelan@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordpes:7154en
local.publisher.placeCollingwood, Australiaen
local.format.startpage507en
local.format.endpage512en
local.peerreviewedYesen
local.identifier.volume55en
local.identifier.issue8en
local.contributor.lastnameLienen
local.contributor.lastnameFellowsen
local.contributor.lastnameCopelanden
local.contributor.lastnameHawketten
local.contributor.lastnameGilberten
dc.identifier.staffune-id:cfellowsen
dc.identifier.staffune-id:lcopelanen
local.profile.orcid0000-0002-8976-8651en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:6029en
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleWater-binding and oxygen permeability in poly(vinyl alcohol) filmsen
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.description.statisticsepubsVisitors: 303<br />Views: 302<br />Downloads: 0en
local.search.authorLien, Lilyen
local.search.authorFellows, Christopheren
local.search.authorCopeland, Lachlanen
local.search.authorHawkett, Brian Sen
local.search.authorGilbert, Robert Gen
local.uneassociationUnknownen
local.year.published2002en
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