Table 3. Residual Weight Percentage of Pure and Toughened Foams at Various Temperatures^a.

	residual weight %			Tmax at 200–400 °C	Tmax at 400–800 °C
	400 °C	600 °C	800 °C
PF	79.05	56.43	40.83	268	453
PF-Li	80.87	58.86	43.38	269	442
PF-SS	81.53	58.52	44.06	267	458
PF-NC	78.83	56.82	43.38	270	439
PF-U	81.14	58.52	44.44	281	461

^aT_max—maximum degradation temperature, Residual weight—mass left in the sample.