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Effect of crosslinker on swelling and thermodynamic properties of polyacrylamide gels

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dc.affiliation.dptoUC3M. Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Químicaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Polímeros y Compositeses
dc.contributor.authorBaselga Llidó, Juan
dc.contributor.authorLlorente Muga, Amaia
dc.contributor.authorHernández-Fuentes, I.
dc.contributor.authorMasegosa, R.M
dc.date.accessioned2017-05-30T08:40:11Z
dc.date.available2017-05-30T08:40:11Z
dc.date.issued1989-01-01
dc.description.abstractPAA networks have been prepared by crosslinking copolymerization of acry- lamide (AA) and N,N'-methylen-bis-acrylamide (BA) in water. The degree of swelling was measured in the range v2 =0-0.16 as a function of crosslinker proportion, C (%w/w) and total concentration, Cr (g/ 100 ml). The swelling of two networks with BA contents of 3 ,;; and 10% were measured as a function of temperature in the range 10-30°C. The interpretation of elastic and swelling data in terms of the scaling law lfh I =Av 2m, shows a transition from a good solvent regime to a collapsed state for the polymer chains, when the crosslinker proportion is around 5 to 7%. Results of elastic and swelling measurements were used to determine the x parameter. A different dependence of x with v2 was found for gels with BA contents below and above 5-7%. The enthalpic contribution to the interaction parameter XH was calculated from swelling experiments as a function of temperature. The results show that when the BA proportion is increased, the enthalpicen
dc.description.sponsorshipFinancial support from CAICYT (SPAIN) under grant nc PA86/0370 is gratefully acknoweldged.es
dc.format.mimetypeapplication/pdf
dc.identifier.bibliographicCitationPolimer Journal, 1989, 21, 467-474es
dc.identifier.issn0032-3896
dc.identifier.publicationfirstpage467es
dc.identifier.publicationissue6es
dc.identifier.publicationlastpage474es
dc.identifier.publicationtitlePolymer journalen
dc.identifier.publicationvolume21es
dc.identifier.urihttps://hdl.handle.net/10016/24609
dc.identifier.uxxiAR/0000010931
dc.language.isoenges
dc.publisherNatureen
dc.rights© Nature, 1989es
dc.rights.accessRightsopen accesses
dc.subject.ecienciaMaterialeses
dc.subject.otherPolyacrylamide Gelsen
dc.subject.otherSwellingen
dc.subject.otherInteraction parameteren
dc.subject.otherCollapseen
dc.titleEffect of crosslinker on swelling and thermodynamic properties of polyacrylamide gelsen
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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