Thermal characterization of the interaction of poly(3-hydroxybutyrate) with maleic anhydride
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Data
2011-11-01
Autores
Souza, J. L. [UNESP]
Santos, A. F. [UNESP]
Crespi, Marisa Spirandeli [UNESP]
Ribeiro, Clovis Augusto [UNESP]
Título da Revista
ISSN da Revista
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Editor
Springer
Resumo
Poly(3-hydroxybutyrate), PHB, has been structurally modified with maleic anhydride, MA, in the presence of triethylamine, TEA. Glass transition, melting, and crystallization temperature, obtained from DSC curves, and thermal degradation temperatures obtained from TG ones, were employed to evaluate the influence of the MA proportion on the modification in the PHB chain. According to the results, most of chain modification reactions are the 80/20 and 90/10 proportions. Observations suggest that most chain modification reactions occur when the ratio of PHB/MA is 80/20 or 90/10. This suggests that modifications of PHB in the presence of MA involve main chain scission.
Descrição
Palavras-chave
Transesterification reaction, Poly(3-hydroxybutyrate), Maleic anhydride
Como citar
Journal of Thermal Analysis and Calorimetry. Dordrecht: Springer, v. 106, n. 2, p. 453-458, 2011.