TGA data of the BMS, AA, CGA3, and RD3^a.

Codes	T d5 (°C)	T d30 (°C)	T s (°C)	T max (°C)	Char800 (%)
BMS	116.6	390.7	137.7	347.5/725.6	36.4
AA	58.7	330.8	108.8	371.0	17.3
CGA3	251.6	344.7	150.7	374.6	15.5
RD3	205.7	334.1	138.5	365.4	17.3

^aThe temperature corresponding to the weight loss of 5% (T_d5), 30% (T_d30), the maximum weight loss rate (T_max) was acquired from TGA curves, and the statistic heat-resistant index temperature (T_s) was calculated by the following equation:⁵²T_s = 0.49 (T_d5 + 0.6 (T_d30 − T_d5)).