Please use this identifier to cite or link to this item:
http://acervodigital.unesp.br/handle/11449/40905
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Bortolin, Adriel | - |
dc.contributor.author | Aouada, Fauze Ahmad | - |
dc.contributor.author | Moura, Marcia R. de | - |
dc.contributor.author | Ribeiro, Caue | - |
dc.contributor.author | Longo, Elson | - |
dc.contributor.author | Mattoso, Luiz H. C. | - |
dc.date.accessioned | 2014-05-20T15:31:53Z | - |
dc.date.accessioned | 2016-10-25T18:07:53Z | - |
dc.date.available | 2014-05-20T15:31:53Z | - |
dc.date.available | 2016-10-25T18:07:53Z | - |
dc.date.issued | 2012-02-15 | - |
dc.identifier | http://dx.doi.org/10.1002/app.34742 | - |
dc.identifier.citation | Journal of Applied Polymer Science. Malden: Wiley-blackwell, v. 123, n. 4, p. 2291-2298, 2012. | - |
dc.identifier.issn | 0021-8995 | - |
dc.identifier.uri | http://hdl.handle.net/11449/40905 | - |
dc.identifier.uri | http://acervodigital.unesp.br/handle/11449/40905 | - |
dc.description.abstract | This article studied the applicability of poly(acrylamide) and methylcellulose (PAAm-MC) hydrogels as potential delivery vehicle for the controlled-extended release of ammonium sulfate (NH(4))(2)SO(4) and potassium phosphate (KH(2)PO(4)) fertilizers. PAAm-MC hydrogels with different acrylamide (AAm) and MC concentrations were prepared by a free radical polymerization method. The adsorption and desorption kinetics of fertilizers were determined using conductivity measurements based on previously built analytical curve. The addition of MC in the PAAm chains increased the quantities of (NH(4))(2)SO(4) and KH(2)PO(4) loaded and extended the time and quantities of fertilizers released. Coherently, both loading and releasing processes were strongly influenced by hydrophilic properties of hydrogels (AAm/MC mass proportion). The best sorption (124.0 mg KH(2)PO(4)/g hydrogel and 58.0 mg (NH(4))(2)SO(4)/g hydrogel) and desorption (54.9 mg KH(2)PO(4)/g hydrogel and 49.5 mg (NH(4))(2)SO(4)/g hydrogel) properties were observed for 6.0% AAm-1.0% MC hydrogels (AAm/MC mass proportion equal 6), indicating that these hydrogels are potentially viable to be used in controlled-extended release of fertilizers systems. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 123: 2291-2298, 2012 | en |
dc.description.sponsorship | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | - |
dc.description.sponsorship | Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) | - |
dc.description.sponsorship | Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) | - |
dc.description.sponsorship | Financiadora de Estudos e Projetos (FINEP) | - |
dc.format.extent | 2291-2298 | - |
dc.language.iso | eng | - |
dc.publisher | Wiley-Blackwell | - |
dc.source | Web of Science | - |
dc.subject | adsorption | en |
dc.subject | conductimetric measurements | en |
dc.subject | controlled-extended release of fertilizers | en |
dc.subject | polysaccharide hydrogels | en |
dc.subject | swelling degree | en |
dc.title | Application of Polysaccharide Hydrogels in Adsorption and Controlled-Extended Release of Fertilizers Processes | en |
dc.type | outro | - |
dc.contributor.institution | Universidade Federal de São Carlos (UFSCar) | - |
dc.contributor.institution | Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) | - |
dc.contributor.institution | Universidade Estadual Paulista (UNESP) | - |
dc.contributor.institution | Universidade de São Paulo (USP) | - |
dc.description.affiliation | Universidade Federal de São Carlos (UFSCar), Dept Chem, BR-13565905 São Carlos, SP, Brazil | - |
dc.description.affiliation | Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) Agr Instrumentat, CNPDIA, LNNA, Natl Nanotechnol Lab Agr, BR-13560905 São Carlos, SP, Brazil | - |
dc.description.affiliation | São Paulo State Univ, Inst Chem, Araraquara, SP, Brazil | - |
dc.description.affiliation | Univ São Paulo, Inst Phys, BR-13560970 São Carlos, SP, Brazil | - |
dc.description.affiliationUnesp | São Paulo State Univ, Inst Chem, Araraquara, SP, Brazil | - |
dc.identifier.doi | 10.1002/app.34742 | - |
dc.identifier.wos | WOS:000297932300048 | - |
dc.rights.accessRights | Acesso restrito | - |
dc.relation.ispartof | Journal of Applied Polymer Science | - |
Appears in Collections: | Artigos, TCCs, Teses e Dissertações da Unesp |
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.