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Viscosity and density measurements of poly(ethyleneglycol) 200 and poly(ethyleneglycol) 600 at high pressures

2023-01-12Journal article Restricted access
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dc.contributor.authorSequeira, Maria Carolina
dc.contributor.authorAvelino, Helena Maria Da Nóbrega Teixeira
dc.contributor.authorCaetano, Fernando J. P.
dc.contributor.authorFareleira, João
dc.date.accessioned2023-05-18T09:27:18Z
dc.date.available2023-05-18T09:27:18Z
dc.date.issued2023-01-12
dc.description.abstractNew measurements for the viscosity and density of poly(ethyleneglycol) 200 [PEG 200] and of poly(ethyleneglycol) 600 [PEG 600], at pressures up to 50 MPa, are presented. The temperature range of the measurements performed for PEG 200 was from 293 to 348 K and for PEG 600 was from 303 to 348 K. A vibrating wire viscometer operated in the steady-state mode was used to carry out the measurements with an estimated overall uncertainty less than U(eta) = 0.02 center dot eta, for viscosities up to 68 mPa s, and less than U(eta) = 0.026 center dot eta, for higher viscosities with a confidence level of 0.95 (k = 2). Complementary density measurements for both PEGs were performed in the same ranges of temperature and pressure as for the viscosity measurements, using an Anton Paar HP vibrating tube densimeter, with an estimated overall uncertainty of about U(eta) = 0.002 center dot rho with a confidence level of 0.95 (k = 2). Moreover, pressure-viscosity coefficients were obtained for both PEGs. A method based on a dense hard-sphere fluid theory was used to correlate the viscosity data with the density, for both PEGs, with a deviation of the experimental results less than 1%. A modified Tait equation was used to correlate the density results with temperature and pressure.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSEQUEIRA, Maria C. M.; [et al] – Viscosity and density measurements of poly(ethyleneglycol) 200 and poly(ethyleneglycol) 600 at high pressures. Journal of Chemical and Engineering Data. ISSN 0021-9568. Vol. 68, N.º 1 (2023), pp. 64-72.pt_PT
dc.identifier.doi10.1021/acs.jced.2c00578pt_PT
dc.identifier.eissn1520-5134
dc.identifier.issn0021-9568
dc.identifier.urihttp://hdl.handle.net/10400.21/16068
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherACS Publicationspt_PT
dc.relationLA/P/0056/2020 - FCTpt_PT
dc.relationCentro de Química Estrutural
dc.relationCentro de Química Estrutural
dc.relationCentro de Química Estrutural
dc.relationCentro de Química Estrutural
dc.relation.publisherversionhttps://pubs.acs.org/doi/pdf/10.1021/acs.jced.2c00578pt_PT
dc.subjectViscositypt_PT
dc.subjectDensity measurementspt_PT
dc.subjectPoly(ethyleneglycol) 200pt_PT
dc.subjectPoly(ethyleneglycol) 600pt_PT
dc.titleViscosity and density measurements of poly(ethyleneglycol) 200 and poly(ethyleneglycol) 600 at high pressurespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCentro de Química Estrutural
oaire.awardTitleCentro de Química Estrutural
oaire.awardTitleCentro de Química Estrutural
oaire.awardTitleCentro de Química Estrutural
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FQUI%2F00100%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FQUI%2F00100%2F2019/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00100%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F00100%2F2020/PT
oaire.citation.endPage72pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage64pt_PT
oaire.citation.titleJournal of Chemical and Engineering Datapt_PT
oaire.citation.volume68pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameMargarido Sequeira
person.familyNameAvelino
person.familyNameCaetano
person.familyNameFareleira
person.givenNameMaria Carolina
person.givenNameHelena Maria da Nóbrega Teixeira
person.givenNameFernando
person.givenNameJoão
person.identifier.ciencia-idFF16-CEAC-461C
person.identifier.ciencia-id9615-6337-5695
person.identifier.ciencia-idDE17-708E-317F
person.identifier.ciencia-id8E1B-F54C-8ABD
person.identifier.orcid0000-0002-9746-2281
person.identifier.orcid0000-0001-6516-2164
person.identifier.orcid0000-0002-6821-1694
person.identifier.orcid0000-0002-8442-9386
person.identifier.ridH-8325-2012
person.identifier.scopus-author-id14919229800
person.identifier.scopus-author-id7004474824
person.identifier.scopus-author-id6603840268
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
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