Table 8. Viscoelastic Properties of the T-1 to T-7 Vulcanizates According to the Temperature

	Unit	T-1	T-2 (After)	T-3 (With)	T-4 (Before)	T-5 (After)	T-6 (With)	T-7 (Before)
Tg	°C	-36.7	-39.6	-38.8	-41.0	-40.3	-40.9	-40.0
Peak tan δ	-	0.997	0.903	1.001	0.956	0.976	1.015	1.029
Tan δ at 60°C	-	0.073	0.105	0.092	0.097	0.079	0.080	0.082