Table 4.

Structural assignments of the most important pyrolysis products detected by stepwise Py-GC/MS of the poly(ether sulfones).

Ph-Structures of Pyrolysis Products	Mass	Ret. Time (min) (Where Present)			Temp. (°C)
		100:0	50:50	0:100
SO2	64				400
		1.62	3.12	1.72	500
				1.53	600
Toluene	92		2.47	2.47	400
					500
			2.98	2.91	600
Phenol	94		4.44	4.99	400
		4.48	4.98	4.42	500
		4.48			600
	166				400
					500
			16.30	16.08	600
Dibenzofuran	168				400
		15.46			500
		15.13	15.39	15.77	600
Ph–O–Ph	170				400
		12.85	13.64	12.91	500
		13.01	13.53		600
	184				400
			14.99	14.69	500
			18.92	18.56	600
9H, Fluorene, 9-phenyl	242				400
					500
			22.20	22.22	600
Ph–Ph–O–Ph	246				400
		22.34	20.9	22.67	500
					600
Ph–CH2–Ph–O–Ph	260				400
		23.99	23.75	22.96	500
					600
HO–Ph–SO2–Ph–CH2–CH3	262				400
		22.62	26.03		500
					600
	288				400
			26.76	24.33	500
					600
Ph–SO2–Ph–O–Ph	310		28.93	27.44	400
		27.42	27.46		500
					600
CH3–Ph–O–Ph–SO2–Ph	324			28.38	400
				28.35	500
					600
Ph–SO2–Ph–O–Ph–CH2–CH3	338				400
		27.58	27.59	29.22	500
					600
Cl–Ph–SO2–Ph–O–Ph	344		28.56	28.56	400
		28.63			500
					600
	355				400
				27.42	500
					600
	370				400
		31.81	31.77		500
					600
HO–Ph–Ph–O–Ph–SO2–Ph	402				400
		20.58			500
		21.14	20.31		600