Waterborne poly(urethane-urea) gas permeation membranes for CO2/CH4 separation

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dc.contributor.authorReis, Rodrigo A.
dc.contributor.authorPereira, Juliana H. C.
dc.contributor.authorCampos, Antoniel C. C.
dc.contributor.authorBarboza, Elaine M.
dc.contributor.authorDelpech, Marcia C.
dc.contributor.authorCesar, Deborah V.
dc.contributor.authorDahmouche, Karim
dc.contributor.authorBandeira, Cirlene F. [UNESP]
dc.contributor.institutionUniversidade do Estado do Rio de Janeiro (UERJ)
dc.contributor.institutionUniversidade Federal do Rio de Janeiro (UFRJ)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T16:50:33Z
dc.date.available2018-12-11T16:50:33Z
dc.date.issued2018-03-15
dc.description.abstractIn this work, dense membranes from aqueous dispersions of poly(urethane-urea) (PUU) based on poly(propylene glycol) (PPG) and a block copolymer composed of poly(ethylene glycol) (PEG) and poly(propylene glycol) (PPG), EG-b-PG, with 7 wt % of the former were obtained. Nonpolluting formulations were synthesized with proportions of PPG and EG-b-PG as 1:0, 1:1, 1:3, and 3:1 in terms of equivalent number ratios. The effect of small and gradual increases in PEG segments was evaluated for the permeability of pure CO2, CH4, and N2, at room temperature. Slight increases in PEG-based segments in PUU promoted some remarkable properties, which led to a simultaneous increase in CO2 permeability and ideal selectivity for CH4 (300%) and N2 (380%). Infrared spectroscopy showed that the PEG portions induced hydrogen bonds between NH of urethane and ether groups in the PEG portions, which promoted ordering of the flexible segments, confirmed by X-ray diffractometry and small-angle X-ray scattering. Diffractometry techniques also confirmed the absence of crystalline domains, as did dynamic mechanical analysis. The produced membranes showed performance above Robeson's 2008 upper bound and seemed to be a superior polymeric material for CO2/CH4 and CO2/N2 separation. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46003.en
dc.description.affiliationInstitute of Chemistry Universidade do Estado do Rio de Janeiro (UERJ), Campus Maracanã, P H L C, S. 310, São Francisco Xavier St., 524
dc.description.affiliationCampus de Xerém Universidade Federal do Rio de Janeiro (UFRJ), Estrada de Xerém, 27, Xerém
dc.description.affiliationDepartment of Materials and Technology Universidade Estadual Paulista (UNESP, Dr. Ariberto Pereira da Cunha Ave., 333
dc.description.affiliationUnespDepartment of Materials and Technology Universidade Estadual Paulista (UNESP, Dr. Ariberto Pereira da Cunha Ave., 333
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)
dc.identifierhttp://dx.doi.org/10.1002/app.46003
dc.identifier.citationJournal of Applied Polymer Science, v. 135, n. 11, 2018.
dc.identifier.doi10.1002/app.46003
dc.identifier.issn1097-4628
dc.identifier.issn0021-8995
dc.identifier.scopus2-s2.0-85034083779
dc.identifier.urihttp://hdl.handle.net/11449/170379
dc.language.isoeng
dc.relation.ispartofJournal of Applied Polymer Science
dc.relation.ispartofsjr0,543
dc.relation.ispartofsjr0,543
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectmembranes
dc.subjectoil and gas
dc.subjectpolyurethane
dc.subjectstructure–property relationships
dc.titleWaterborne poly(urethane-urea) gas permeation membranes for CO2/CH4 separationen
dc.typeArtigo
unesp.author.orcid0000-0002-1687-7881[1]

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