Actas de congresos
Study of Miscibility in Polymer Blends Containing Alginate with Biodegradable Polymers. Influence of chemical Structures and Molecular weight of the polymers.
Fecha
2014Institución
Resumen
The interactions between sodium alginate (ALG) and poly(ɛ-caprolactone) (PCL) of different molecular weights were
studied: PCL 45000, PCL 14000 and PCL 2000 diol The films prepared from the mixtures were studied by TGA, DSC FT-IR.
The phase behavior of the blends studied by DSC shows that the systems behavior as one-phase systems. According to the
results of FT-IR analysis of the differents absorptions of the blends relative to the pure components ,they show an important
shift that is can be considered evidence of an strong interaction between the components of the blends. TGA analysis the
blends and the pure components shows that the temperature for thermal degradation of the blends is higher than that of the
pure components. With these results it can be concluded that these blends corresponds to a compatible polymer blends.
Influence of the molecular weight of the biodegradable polymer was also observed on the polymers interactions.
Keywords: Biodegradable, Interaction, Miscibility