. 2025 Apr 23;17(9):1152. doi: 10.3390/polym17091152

Table 2.

Thermal properties of PAIs.

Polymer Code	T_g (°C) ^a	T_d at 5% Weight Loss (°C) ^b		T_d at 10% Weight Loss (°C) ^b		Char Yield (wt %) ^c
Polymer Code	T_g (°C) ^a	N₂	Air	N₂	Air	Char Yield (wt %) ^c
6a	355	525	537	553	575	58
6b	326	545	550	578	600	60
6c	304	532	539	576	589	55
6d	296	504	488	541	549	58
6e	331	496	514	523	559	58
6f	326	549	535	585	576	62
MeO-6a	325	464	438	495	469	68
MeO-6b	323	483	482	519	520	66
MeO-6c	299	500	476	532	522	50
MeO-6d	286	501	473	539	509	60
MeO-6e	300	444	447	562	478	52
MeO-6f	326	480	473	522	511	55
t -Bu-6a	350	527	515	560	554	58
t -Bu-6b	304	513	522	549	556	58
t -Bu-6c	309	479	473	512	522	55
t -Bu-6d	289	501	509	532	554	56
t -Bu-6e	313	423	437	448	471	50
t -Bu-6f	322	511	486	552	525	58

^a Midpoint temperature of the baseline shift on the second DSC heating trace (rate = 20 °C/min) after quenching from 400 to 50 °C in nitrogen. ^b Decomposition temperature at which a 5% or 10% weight loss was recorded by TGA at a heating rate of 20 °C/min and a gas flow rate of 20 cm³/min. ^c Residual weight % at 800 °C at a scan rate 20 °C/min in nitrogen.