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Degradation of different polystyrene/thermoplastic starch blends buried in soil

Tipo de material: TextoTextoSeries ; Carbohydrate Polymers, 75(1), p.58-62, 2009Trabajos contenidos:
  • Schlemmer, D
  • Sales, M.J.A
  • Resck, I.S
Tema(s): Recursos en línea: Resumen: Blends of PS and TPS were prepared using two different plasticizers: glycerol or buriti oil by solvent casting technique. PS/TPS blends were submitted to degradation by soil burial tests in perforated boxes for 6 months and later analyzed by TG and CPMAS 13C NMR. After degradation, blends with glycerol presented less stages of thermal degradation and NMR signals of minor intensity compared to the original blends. The presence of TPS at contents of 50
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Blends of PS and TPS were prepared using two different plasticizers: glycerol or buriti oil by solvent casting technique. PS/TPS blends were submitted to degradation by soil burial tests in perforated boxes for 6 months and later analyzed by TG and CPMAS 13C NMR. After degradation, blends with glycerol presented less stages of thermal degradation and NMR signals of minor intensity compared to the original blends. The presence of TPS at contents of 50

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