Table 9.

ZST values of irradiated polymers

Polymer	Dose	ZST
	ev/g×10−20	sec
TFE-HFPa,c	0	256
	0.197	232
	.600	276
	1.54	243
	3.69	371
	5.52	448
	24.4	195
	70.6	d123
TFE-HFPb,c	5.57	218
	24.4	(e)
HFP-VFa,f	0	356
	0.202	749
	.384	3275
	g.384	4030
	.616	49000
	5.72	h>260000
	28.4	h>260000
	74.0	h>260000
HFP-VFb,f	0.202	523
	.384	1080
	.616	3639
CTFE-VFa,i	0	1001
(15.5% Cl)	5.69	172
	28.2	21.6
	73.6	8
CTFE-VFb,i	0.201	901
(15.5% Cl)	.612	5988
	3.77	3330
CTFE-VFa,i	0	960
(11.3% Cl)	5.72	h>216000
	28.4	723
	74.0	67.6
CTFE-VFb,i	0.202	h>6700
(11.3% Cl)	3.79	h>80000

^aIrradiated in vacuum.

^bIrradiated in air.

^cZST at 280±0.5 °C. Thickness 0.060 in., or 0.040 in. converted to 0.060 in. basis.

^dRather brittle.

^eFriable; could not be handled.

^fZST at 120°±0.5 °C.

^gHeated after irradiation at 100 °C for 0.5 hr.

^hNo break; abandoned at time indicated.

ⁱZST at 214°±1 °C.