Table 2. Thermal Properties of PPC and PPC with Networks.

sample	temperature for onset of weight loss (°C)	temperature for 5% weight loss (°C)	temperature for maximum weight loss (°C)	glass transition temperature (°C)
PPC	197	217	231/251c	51,e 35f
PPC0.5	256,a 256b	288,a 277b	298,a 293b	47, 31
PPC1	264, 258	288, 281	297, 294	50, 33
PPC2	273, 264	289, 282	297, 293	50, 34
PPC3	272, 263	292, 282	302, 295	53, 38
PPC4	275, 266	291, 282	312, 288/299d	51, 37

^aThe copolymers.

^bThe soluble fraction of the copolymers.

^cPPC has two main maximum weight-loss peaks at 231 and 251 °C.

^dThe soluble fraction of the PPC4 has two maximum weight-loss peaks at 288 and 299 °C.

^eMeasured from tan δ curves in a DMA test.

^fMeasured from DSC curves.