Effect of crosslinker on swelling and thermodynamic properties of polyacrylamide gels

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dc.contributor.author Baselga Llidó, Juan
dc.contributor.author Llorente Muga, Amaia
dc.contributor.author Hernández-Fuentes, I.
dc.contributor.author Masegosa, R.M
dc.date.accessioned 2017-05-30T08:40:11Z
dc.date.available 2017-05-30T08:40:11Z
dc.date.issued 1989-01-01
dc.identifier.bibliographicCitation Polimer Journal, 1989, 21, 467-474
dc.identifier.issn 0032-3896
dc.identifier.uri http://hdl.handle.net/10016/24609
dc.description.abstract PAA 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 enthalpic
dc.description.sponsorship Financial support from CAICYT (SPAIN) under grant nc PA86/0370 is gratefully acknoweldged.
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Nature
dc.rights © Nature, 1989
dc.subject.other Polyacrylamide Gels
dc.subject.other Swelling
dc.subject.other Interaction parameter
dc.subject.other Collapse
dc.title Effect of crosslinker on swelling and thermodynamic properties of polyacrylamide gels
dc.type article
dc.subject.eciencia Materiales
dc.rights.accessRights openAccess
dc.type.version acceptedVersion
dc.identifier.publicationfirstpage 467
dc.identifier.publicationissue 6
dc.identifier.publicationlastpage 474
dc.identifier.publicationtitle Polymer journal
dc.identifier.publicationvolume 21
dc.identifier.uxxi AR/0000010931
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