Nano Science and Technology Institute
Nanotech 2012 Vol. 3
Nanotech 2012 Vol. 3
Nanotechnology 2012: Bio Sensors, Instruments, Medical, Environment and Energy (Volume 3)
Chapter 9: Efficiency, Green Building & Water Technologies

Structural and Thermo-Mechanical Characterization of Calcium and Barium Alginate Films

Authors:T.K. Vidal-Urquiza, O. Perales-PĂ©rez
Affilation:University of Puerto Rico, PR
Pages:672 - 675
Keywords:polymer, thermomechanical analisis, structure, glass transition
Abstract:Alignate films require its precise characterization of mechanical and thermo-mechanial properties, which are useful for several potential applications in environmental protection, biotechnology, and others areas. Therefore, this work study the aforementioned film properties of sodium alginate cross-linked with divalent Ca2+ and Ba2+ ions. For this aim, Ca and Ba alginate films were synthesized via an immersion technique, where the solution concentrations and curing times were controlled. X-ray diffraction, Fourier-transform infrared and Raman spectroscopy techniques confirmed the development of the Ca- or Ba-alginate structures. In the same way, Glass transition temperature, coefficient of thermal expansion were confirm by Thermomechanical analysis. By other hand, Complex modulus will be confirmed by using Dynamic mechanical analysis.
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