Ionic Liquid-Catalyzed Preparation of Aromatic Polyamides Containing Phthalazinone Moiety

Table 2

Thermal properties of PA_1–8.

Polymer	IL catalysis polycondensation			Conventional polycondensation [1]
	^a𝑇10%	^b𝑇𝑔 (°C)	^cChar yield	𝑇10%	𝑇𝑔 (°C)	Char yield
PA1	497	323	61	509	338	—
PA2	458	310	62	—	—	—
PA3	511	321	56	—	—	—
PA4	521	317	53	—	—	—
PA5	498	312	42	—	—	—
PA6	565	324	87	511	311	—
PA7	488	332	50	—	—	—
PA8	578	345	68	—	—	—

aTemperature at which 10% weight loss was recorded by TGA at a heating rate of 10°C/min under nitrogen atmosphere. ^bGlass transition temperature recorded by DSC at a heating rate of 10°C/min under nitrogen atmosphere. ^cPercentage weight of material left after TGA analysis at maximum temperature 600°C under nitrogen atmosphere.