Cellulose acetate membranes for osmosedimentation: Performance and morphological dependence on preparation conditions

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dc.contributor.authorNunes, Suzana Pereira
dc.contributor.authorGalembeck, Fernando
dc.contributor.authorBarelli, Nilso [UNESP]
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T01:42:44Z
dc.date.available2014-05-27T01:42:44Z
dc.date.issued1986-06-01
dc.description.abstractOsmosedimentation is a new membrane-assisted separation technique, based on the rapid approach to sedimentation equilibrium when macromolecular solutions are contained within dialysis cells, in contact with solvent via a permselective membrane. Cellulose acetate membranes, cast from ternary solvent (acetone, acetic acid, water) solutions are suitable for osmosedimentation of proteins at low (2000 rpm) centrifugation speeds. Solute retention is improved when acetone-rich casting solutions are used. These membranes were examined by electron and optical microscopy, showing considerable morphological changes in the membrane support layer as the casting solution composition is changed. © 1986.en
dc.description.affiliationInstituto de Química Universidade Estadual de Campinas, Caixa Postal 6154, Campinas, SP
dc.description.affiliationInstituto de Química Universidade Estadual Paulista, Araraquara, SP
dc.description.affiliationUnespInstituto de Química Universidade Estadual Paulista, Araraquara, SP
dc.format.extent937-943
dc.identifierhttp://dx.doi.org/10.1016/0032-3861(86)90308-3
dc.identifier.citationPolymer, v. 27, n. 6, p. 937-943, 1986.
dc.identifier.doi10.1016/0032-3861(86)90308-3
dc.identifier.issn0032-3861
dc.identifier.scopus2-s2.0-0022736358
dc.identifier.urihttp://hdl.handle.net/11449/130645
dc.identifier.wosWOS:A1986C588800023
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofPolymer
dc.relation.ispartofjcr3.483
dc.relation.ispartofsjr1,097
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectMembrane morphology
dc.subjectOsmosedimentation
dc.subjectCellulose derivatives - Applications
dc.subjectDiaphragms - Morphology
dc.subjectMicroscopic Examination
dc.subjectProteins - Separation
dc.subjectCasting solvent
dc.subjectCellulose acetate membranes
dc.subjectMembrane morphology
dc.subjectOsmosedimentation
dc.subjectMembranes
dc.titleCellulose acetate membranes for osmosedimentation: Performance and morphological dependence on preparation conditionsen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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