Table 1. Results of Thermal Gravimetrical Analysis (τ₅, τ₁₀, τ₄₀, °C) and Differential Scanning Calorimetry (T_g, °C) obtained for all the studied nanocomposite fibers based on PEI.

	temperature of decomposition, °C
fiber	τ5 (5% weight loss)	τ10 (10% weight loss)	τ40 (40% weight loss)	Tg, °C
PEI	522	530	590	217
PEI + 0.05% SWCNTs	520	530	630	216
PEI + 0.1% SWCNTs	524	531	617	216
PEI + 0.2% SWCNTs	524	531	627	217
PEI + 0.5% SWCNTs	518	529	604	216
PEI + 0.5% VGCFs	523	531	597	218
PEI + 1% VGCFs	524	529	614	218
PEI + 3% VGCFs	525	531	613	217
PEI + 5% VGCFs	522	533	644	218