Produção Nacional
Revisado por pares
Estudo das propriedades e biodegradabilidade de blendas de poliéster/amido submetidas ao ataque microbiano
2007; Brazilian Chemical Society; Volume: 30; Issue: 7 Linguagem: Inglês
10.1590/s0100-40422007000700016
ISSN1678-7064
AutoresGlória Maria Vinhas, Yêda Medeiros Bastos de Almeida, Maria Alice Gomes de Andrade Lima, Lívia Almeida Santos,
Tópico(s)Carbon dioxide utilization in catalysis
ResumoMICROBIAL ATTACK.This work deals with the biodegradation of blends of poly(β-hydroxybutyrate)/starch and poly(β-hydroxybutyrate-cohydroxyvalerate)/starch.The blends were obtained by evaporation of the solvent in the mixture of the polymers in chloroform.Tests were carried out in presence of micro-organisms which acted as biodegradation agents.The blends were consumed as carbon substrate and the production of CO 2 was evaluated in the process.In addition, the polyesters' mechanical properties were reduced by the incorporation of starch in its structure.( 1 H) NMR and infrared spectroscopy detected some characteristic polyester degradation groups in the polyesters' chemical structure, thus confirming the alteration suffered by it.
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