Synthesis and characterization of hybrides membranes composed of chitosan, polyvinyl alcohol and silica for its application in dehydration of gases

  • Martha Isabel Gutiérrez-Gutiérrez Ing. química, Universidad Industrial de Santander Bucaramanga
  • Diego Francisco Morales-Mendivelso Ing. químico, Universidad Industrial Santander Bucaramanga
  • Carlos Jesús Muvdi-Nova Ph. D. de Procesos, Universidad Industrial de Santander Bucaramanga
  • Arlex Chaves-Guerrero Ph. D. en Ingeniería Química, Universidad Industrial de Santander. Bucaramanga
Keywords: Membranes, crosslinking, dehydration, permeation


The membrane systems are an attractive technology applied to separation process.  For decades, the synthesis and characterization of its properties have been studied focusing its development of efficient and competitive membrane systems. In order to study the feasibility of the utilization of synthesized hybrids membranes to the process of gases dehydration, dense membranes composed  of  chitosan, polyvinyl alcohol and silica were elaborated  applying  the  solution  casting  method, considering  different  compositions, thickness and studying its permeability of water vapor. It was found that chitosan (CTS) quantity is the variable that affects more significantly  the permeated.  In addition, the influence of the time and the glutaraldehyde concentration in the crosslinking process was evaluated.  The experimental results showed that selected parameters do not have influence on permeate, only physical-chemical features of the membrane. Lastly, the membranes were characterized with three methods: (1) Infrared Spectroscopy (FTIR) that show internal structure changes with the crosslinking, (2) Differential scanning calorimetry that evidence changes  in  the  thermal  transitions  and  (3)  Thermogravimetric  Analysis  (TGA)  that  show  the  temperatures  of degradation of the membranes.


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How to Cite
Gutiérrez-Gutiérrez, M., Morales-Mendivelso, D., Muvdi-Nova, C., & Chaves-Guerrero, A. (2015). Synthesis and characterization of hybrides membranes composed of chitosan, polyvinyl alcohol and silica for its application in dehydration of gases. ITECKNE, 12(1), 33-43.
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