Otro
Thermal behavior of the maleic anhydride modified poly(3-hydroxybutyrate)
Registro en:
Journal of Thermal Analysis and Calorimetry. Dordrecht: Springer, v. 87, n. 3, p. 673-677, 2007.
1388-6150
10.1007/s10973-006-7852-3
WOS:000244823700013
0000-0002-7984-5908
Autor
Souza, J. L.
Santos, A. F.
Polese, L.
Crespi, Marisa Spirandeli
Ribeiro, Clovis Augusto
Resumen
Poly(3-hydroxybutyrate), PHB has been structurally modified through reaction with maleic anhydride, MA. Transesterification reaction was carried out fixing the PHB and MA and besides time and temperature the concentration of the triethylamine (used as catalyst) was changed. Glass transition, melting and crystallization temperature obtained from DSC curves and thermal degradation temperatures obtained from TG traces were used to evaluate the influence of the reaction conditions on the modification of PHB according to factorial design. on the base of the results the optimum conditions are to perform the PHB modification reaction with MA reaction at 110 degrees C for 1 h with 5% v/v triethylamine.