Surface composition and morphology of poly(3-hydroxybutyrate) exposed to biodegradation

作者: M.C.S. Corrêa , M.L. Rezende , D.S. Rosa , J.A.M. Agnelli , P.A.P. Nascente

DOI: 10.1016/J.POLYMERTESTING.2008.01.007

关键词:

摘要: Injected samples of poly(3-hydroxybutyrate) (PHB) were exposed to biodegradation in simulated soil and then characterized by X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), differential calorimetry (DSC), roughness weight loss. The decomposition medium was evaluated measurements pH, humidity amounts carbon nitrogen. loss test indicated a significant decrease with time, which more intense the first 3 months biodegradation. results obtained means XPS, SEM, DSC analyses suggested possible layer-by-layer degradation process having 3-month period.

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