Artículos de revistas
Determination of the degree of substitution of modified chitosan by cyclic voltammetry at water/dichloroethane interface
Aldana, Ana Agustina; Strumia, Miriam Cristina; Yudi, Lidia Mabel; Martinelli, Marisa; Juárez, Ana Valeria; Determination of the degree of substitution of modified chitosan by cyclic voltammetry at water/dichloroethane interface; Elsevier; Electrochimica Acta; 117; 12-2014; 534-540
Aldana, Ana Agustina
Strumia, Miriam Cristina
Yudi, Lidia Mabel
Juárez, Ana Valeria
The electrochemical behavior of the cationic polymer chitosan-gtmac (Ch-GTMAC), at the polarized water / 1,2-dichloroethane interface was studied. This polymer was obtained by nucleophilic reaction of chitosan (Ch) with glycidyltrimethylammonium chloride groups (GTMAC). The voltammetric response was found to be dependent on the concentration of the polymer, on pH of the aqueous phase, and on the nature of the organic electrolyte. The results suggest a weak adsorption of the polymer coupled to the transfer towards the organic phase. Desorption process is quasi-reversible, and there is not interaction between adsorbents. From the analysis of desorption charge, it was possible to determine the substitution degree of the polymer
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Novel active packaging based on films of chitosan and chitosan/quinoa protein printed with chitosan-tripolyphosphate-thymol nanoparticles via thermal ink-jet printing Caro, Nelson; Medina, Estefanía; Díaz Dosque, Mario; López, Luis; Abugoch James, Lilian; Tapia, Cristian (Elsevier, 2016)© 2015 Elsevier Ltd.New active packaging films based on chitosan (Qo) and a blend of Qo and quinoa-protein (EPQ) were developed. The films were printed with chitosan-tripolyphosphate nanoparticles (NQos) and NQos loaded ...
TABOADA VALDÉS,EDELIO; CÁRDENAS TRIVIÑO,GALO
SYNTHESIS AND CHARACTERIZATION OF CARBOXYMETHYL CHITOSAN-ARG AND CARBOXYMETHYL CHITOSAN-LYS DERIVATIVES Cárdenas,Galo; Cuellar,J. Daniel; Neira,Karem