Table 2.

General properties of heat-treated TLCP fibers.

Heat treat. (°C/h)	IVa	Tg (°C)	Tm (°C)	Ti (°C)	ΔTi−mb (°C)	TDic (°C)	wtR600d (%)	LC phase	DCe (%)
As-spun	Insol.f	82	277	315	38	363	35	Ng	27
190/3	Insol	92	279	317	38	366	34	N	30
210/3	Insol	94	280	317	37	367	35	N	36
230/3	Insol	98	280	322	42	366	35	N	36
250/3	Insol	97	287	321	34	367	36	N	37
230/3	Insol	98	280	322	42	366	35	N	36
230/6	Insol	98	281	322	41	366	35	N	37
230/9	Insol	102	286	325	41	363	35	N	36
230/12	Insol	93	276	318	42	363	36	N	33

^aInherent viscosity was measured at a concentration of 0.1 g/dL solution in phenol/p-chlorophenol/TCE = 25/40/35 (w/w/w) at 25 °C.

^bTemperature ranges of the liquid crystalline mesophase.

^cAt a 2% initial weight-loss temperature.

^dWeight percent of the residue at 600 °C.

^eDegree of crystallinity.

^fInsoluble.

^gNematic.