An enhanced thermal stability of poly(2,6-dimethyl-1,4-phenylene oxide) in the presence of small additives of C60 and C70 fullerenes

Thermal degradation of poly(2,6-dimethyl-1,4-phenylene oxide) and its blends with 1-4% fullerene C 60 or C 70 was studied by mass-spectrometric thermal analysis and DSC. It was shown that the addition of fullerene shifts the onset of the processes of thermal degradation and the homolytic decomposition of the polymer with the formation of gaseous products to higher temperatures, thereby increasing its thermal stability The inhibiting effect of fullerene C 70 is stronger compared to C 60 .