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Effect of sodium salts on diffusion of poly(vinyl alcohol) in aqueous solutions

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dc.title Effect of sodium salts on diffusion of poly(vinyl alcohol) in aqueous solutions en
dc.contributor.author Filová, Barbora
dc.contributor.author Musilová, Lenka
dc.contributor.author Mráček, Aleš
dc.contributor.author Ramos, Maria Luísa
dc.contributor.author Veríssimo, Luís Manuel Pires
dc.contributor.author Valente, Artur J.M.
dc.contributor.author Ribeiro, Anna C.F.
dc.relation.ispartof Journal of Molecular Liquids
dc.identifier.issn 0167-7322 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2020
utb.relation.volume 304
dc.type article
dc.language.iso en
dc.publisher Elsevier B.V.
dc.identifier.doi 10.1016/j.molliq.2020.112728
dc.relation.uri https://www.sciencedirect.com/science/article/pii/S0167732219363391
dc.subject Diffusion coefficient en
dc.subject Poly (vinyl alcohol) en
dc.subject Sodium chloride en
dc.subject Sodium sulfate en
dc.subject Solutions en
dc.subject Transport properties en
dc.description.abstract The Taylor dispersion technique has been used for measuring the tracer diffusion coefficients, D0 Tracer, for poly (vinyl alcohol) (PVA) in aqueous systems containing two specific electrolytes (i.e., NaCl and Na2SO4) at three different concentrations (0.020, 0.050 and 0.10 mol dm−3), and at 25 °C. The selection of these salts has been based on the Hofmeister series of cations and anions, which order the ions with respect to the behavior of some macroscopic properties (such as, surface tension) and that can be interpreted as an effect salting-out or salting-in, depending if the target ions are strongly (kosmotropic) or a weakly hydrated (chaotropic). In this work, we have been used the combination of two kosmotropic ions (Na2SO4) and another one with a kosmotropic cation and a chaotropic anion (NaCl). These data, complemented by NMR measurements, permit us to have a better understanding about the effect of these sodium salts on transport and thermodynamic behaviour of PVA. © 2020 Elsevier B.V. en
utb.faculty Faculty of Technology
utb.faculty University Institute
dc.identifier.uri http://hdl.handle.net/10563/1009618
utb.identifier.scopus 2-s2.0-85081116453
utb.identifier.wok 000525305500032
utb.identifier.coden JMLID
utb.source j-scopus
dc.date.accessioned 2020-03-26T10:44:53Z
dc.date.available 2020-03-26T10:44:53Z
dc.description.sponsorship The Coimbra Chemistry Centre - Fundacao para a Ciencia e a Tecnologia (FCT), Portuguese Agency for Scientific Research [UID/QUI/UI0313/2020]; "The Coimbra Chemistry Centre" - Fundacao para a Ciencia e a Tecnologia (FCT), Portuguese Agency for Scientific Research through programme COMPETE; FEDER European Regional Development Fund through the COMPETE ProgrammeEuropean Union (EU); FCTPortuguese Foundation for Science and Technology [REEQ/481/QUI/2006, RECI/QEQ-QFI/0168/2012, CENTRO-07-CT62-FEDER-002012]; Rede Nacional de Ressonancia Magnetica Nuclear (RNRMN); Erasmus+ programme of the European Union 2018/19European Union (EU); Ministry of Education, Youth, and Sports of the Czech Republic, Program NPU I [LO1504]
utb.ou Department of Physics and Material Engineering
utb.ou Centre of Polymer Systems
utb.contributor.internalauthor Filová, Barbora
utb.contributor.internalauthor Musilová, Lenka
utb.contributor.internalauthor Mráček, Aleš
utb.fulltext.sponsorship The authors in Coimbra are grateful for funding from “The Coimbra Chemistry Centre” which is supported by the Fundação para a Ciência e a Tecnologia (FCT), Portuguese Agency for Scientific Research, through the programmes UID/QUI/UI0313/2020 and COMPETE. NMR data were obtained at the UC-NMR facility which is supported in part by FEDER – European Regional Development Fund through the COMPETE Programme and by National Funds by FCT , through grants REEQ/481/QUI/2006 , RECI/QEQ-QFI/0168/2012 , CENTRO-07-CT62-FEDER-002012 , and the Rede Nacional de Ressonância Magnética Nuclear (RNRMN) B. Filova is thankful for funding from Erasmus+ programme of the European Union 2018/19. The authors in Zlín are grateful for research funding by the Ministry of Education, Youth, and Sports of the Czech Republic, Program NPU I (LO1504).
utb.wos.affiliation [Filova, Barbora; Luisa Ramos, M.; Verissimo, Luis M. P.; Valente, Artur J. M.; Ribeiro, Ana C. F.] Univ Coimbra, Ctr Quim Coimbra, Dept Chem, P-3004535 Coimbra, Portugal; [Filova, Barbora; Musilova, Lenka; Mracek, Ales] Thomas Bata Univ Zlin, Fac Technol, Dept Phys & Mat Engn, Vavrekova 275, Zlin 76001, Czech Republic; [Musilova, Lenka; Mracek, Ales] Thomas Bata Univ Zlin, Ctr Polymer Syst, Tr Tomase Bati 5678, Zlin 76001, Czech Republic
utb.scopus.affiliation Centro de Química de Coimbra, Department of Chemistry, University of Coimbra, Coimbra, 3004-535, Portugal; Department of Physics and Materials Engineering, Faculty of Technology, Thomas Bata University in Zlín, Vavrečkova 275, Zlín, 760 01, Czech Republic; Centre of Polymer Systems, Thomas Bata University in Zlín, tř. Tomáše Bati 5678, Zlín, 760 01, Czech Republic
utb.fulltext.projects UID/QUI/UI0313/2020
utb.fulltext.projects COMPETE
utb.fulltext.projects REEQ/481/QUI/2006
utb.fulltext.projects RECI/QEQ-QFI/0168/2012
utb.fulltext.projects CENTRO-07-CT62-FEDER-002012
utb.fulltext.projects LO1504
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