Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.12104/64352
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dc.contributor.authorBecerra-Bracamontes, F.
dc.contributor.authorSanchez-Diaz, J.C.
dc.contributor.authorArellano-Ceja, J.
dc.contributor.authorGonzalez-Alvarez, A.
dc.contributor.authorMartinez-Ruvalcaba, A.
dc.date.accessioned2015-11-19T18:49:18Z-
dc.date.available2015-11-19T18:49:18Z-
dc.date.issued2009
dc.identifier.urihttp://hdl.handle.net/20.500.12104/64352-
dc.description.abstractIn this work were prepared chitosan hydrogels by ionotropic gelation technique with sodium phosphate dibasic (SPD) in an aqueous acetic acid solution 2% v/v. The results obtained shows that the ionic interaction of the NH+ 3 groups liked to the chitosan chain with the SPD anionic groups is depending of the pH of the swelling solvent. Were studied the swelling properties of the chitosan/SPD in function the the swelling media pH (3, 5, 7, and 11) and the percentage of solids in the hydrogel (2, 3, and 4% w/w). In the acid swelling medium the swelling capacity of the hydrogels was higher respect to the capacities obtained in basic and neutral media; moreover with a percentage of solids of 2% w/w the swelling capacities were higher. An overshooting effect in the hydrogels was observed, followed by a lost in the volume of the hydrogels until the swelling equilibrium is attained.
dc.titleEffect of ph and sodium phosphate dibasic concentration on the swelling properties of chitosan hydrogels [Efecto del ph y la concentracion del fosfato dibasico de sodio en las propiedades de hinchamiento de hidrogeles de quitosana]
dc.typeArticle
dc.relation.ispartofjournalRevista Mexicana de Ingeniera Qumica
dc.relation.ispartofvolume8
dc.relation.ispartofissue1
dc.relation.ispartofpage121
dc.relation.ispartofpage126
dc.subject.keywordChitosan; Hydrogels; pH; Sodium phosphate dibasic; Swelling properties
dc.contributor.affiliationBecerra-Bracamontes, F., Departamento de Química, Universidad de Guadalajara, 44430 Guadalajara, Mexico; Sánchez-Díaz, J.C., Departamento de Ingeniería Química, Universidad de Guadalajara, 44430 Guadalajara, Mexico; Arellano-Ceja, J., Departamento de Ingeniería Química, Universidad de Guadalajara, 44430 Guadalajara, Mexico; González-Álvarez, A., Departamento de Ingeniería Química, Universidad de Guadalajara, 44430 Guadalajara, Mexico; Martínez-Ruvalcaba, A., Departamento de Ingeniería Química, Universidad de Guadalajara, 44430 Guadalajara, Mexico
dc.relation.isReferencedByScopus
dc.relation.isReferencedByWOS
dc.identifier.urlhttp://www.scopus.com/inward/record.url?eid=2-s2.0-79960296708&partnerID=40&md5=7b3716afe1eed02bc831f3378e7ff827
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