Browsing by Author "VARGAS, MA"

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    THERMOGRAVIMETRIC ANALYSIS OF POLY(ETHER-ESTER)S DERIVED FROM BISACID A-2 AND RELATED DIACIDS AND DIPHENOLS
    (ELSEVIER SCIENCE BV, 1991) TAGLE, LH; DIAZ, FR; VARGAS, MA
    The thermogravimetric behaviour of nine poly(ether-ester)s derived from three acid dichlorides and three diphenols was studied by dynamic thermogravimetry. The thermal decomposition temperatures (TDT), the temperature at which the poly(ether-ester)s lost 10% of their weight, were also determined; they are within 30-degrees-C of each other. The kinetics parameters of the thermal decomposition were also determined. The poly(ether-ester)s in which the structures of the acid dichloride and the diphenol were the same, showed a 0 kinetic order, but when those structures were different the kinetic order was 0.5, which means that the degradation is a complex process.