Thermal studies of chitin-chitosan derivatives

dc.contributorUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:27:26Z
dc.date.available2014-05-27T11:27:26Z
dc.date.created2014-05-27T11:27:26Z
dc.date.issued2012-12-27
dc.identifierJournal of Thermal Analysis and Calorimetry, p. 1-7.
dc.identifier1388-6150
dc.identifier1572-8943
dc.identifierhttp://hdl.handle.net/11449/74088
dc.identifier10.1007/s10973-012-2835-z
dc.identifierWOS:000325075600037
dc.identifier2-s2.0-84871436002
dc.identifier6475585105456744
dc.identifier5943919093617181
dc.description.abstractNew poly(azo) amino-chitosan compounds were obtained from the azo coupling reaction of N-benzyl chitosan and diazonium salts. The thermal behavior of these compounds was studied by thermogravimetric analysis (TG), differential thermogravimetric analysis (DTG), TG coupled with a Fourier-transform infrared, and differential scanning calorimetry (DSC). TG/DTG curves of chitin-chitosan polymer showed two thermal events attributed to water loss and decomposition of the polysaccharide after cross-linking reactions. Thermal analysis of the poly(azo) amino-chitosan compounds showed that the decomposition temperatures decreased when compared to the starting chitin-chitosan and N-benzyl chitosan. DSC results showed an agreement with the TG/DTG analyses. Thermal behavior of poly(azo) amino-chitosans suggest that these compounds could be considered as potential thermal sensors. © 2012 Akadémiai Kiadó, Budapest, Hungary.
dc.languageeng
dc.relationJournal of Thermal Analysis and Calorimetry
dc.relation2.209
dc.relation0,587
dc.rightsAcesso restrito
dc.sourceScopus
dc.subjectAzo compounds
dc.subjectChitin-chitosan biopolymer
dc.subjectN-alkylation
dc.subjectTG/DTG and DSC
dc.titleThermal studies of chitin-chitosan derivatives
dc.typeArtículos de revistas


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