PREFERENTIAL ADSORPTION DETERMINED BY SPECIFIC INTERACTIONS - POLY(DIALKYL ITACONATES) 1,4-DIOXANE/METHANOL

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dc.contributor.authorHORTA, A
dc.contributor.authorGARGALLO, L
dc.contributor.authorRADIC, D
dc.date.accessioned2024-01-10T13:52:23Z
dc.date.available2024-01-10T13:52:23Z
dc.date.issued1990
dc.description.abstractThe variation of the preferential adsorption coefficient, lambda, with the solvent composition, for a series of poly(dialkyl itaconates) is studied in the mixed solvent 1,4-dioxane/methanol. In these systems specific hydrogen bonding of methanol to 1,4-dioxane and to the polymer take place. Methanol is preferentially adsorbed at low methanol composition, but 1,4-dioxane is preferentially adsorbed at high compositions. All systems here studied show inverstion in lambda. The variation of lambda with solvent composition depends on the size of the side group of the polymer. In order to interpret the influence of hydrogen bonding on these systems, the recent theory of the association equilibria has been applied. According to the results of this theory, the inversion and extrema of lambda come from a balance of effects: the high quality of 1,4-dioxane as solvent and the length of the chains of self-associated methanol, which are complexed with the polymer. It is possible to find a quantitative agreement between this theory and experimental results by using reasonable values for the association constants and interaction parameters of the theory.
dc.fechaingreso.objetodigital2024-04-25
dc.format.extent6 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1021/ma00228a003
dc.identifier.issn0024-9297
dc.identifier.urihttps://doi.org/10.1021/ma00228a003
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/79660
dc.identifier.wosidWOS:A1990EQ57100003
dc.information.autorucQuímica;Gargallo L;S/I;98194
dc.issue.numero26
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final5325
dc.pagina.inicio5320
dc.publisherAMER CHEMICAL SOC
dc.revistaMACROMOLECULES
dc.rightsacceso restringido
dc.subjectFLORY-HUGGINS EQUATION
dc.subjectPOLYMER-MIXED-SOLVENT
dc.subjectSTATISTICAL THERMODYNAMICS
dc.subjectTETRAHYDROFURAN WATER
dc.subjectCOSOLVENT SYSTEM
dc.subjectTOTAL SORPTION
dc.subjectMETHACRYLATE)S
dc.subjectEQUILIBRIA
dc.subjectMETHANOL
dc.subject.ods06 Clean Water and Sanitation
dc.subject.odspa06 Agua limpia y saneamiento
dc.titlePREFERENTIAL ADSORPTION DETERMINED BY SPECIFIC INTERACTIONS - POLY(DIALKYL ITACONATES) 1,4-DIOXANE/METHANOL
dc.typeartículo
dc.volumen23
sipa.codpersvinculados98194
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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