Molecular Interaction Study of Polyvinylchloride in Dimethylformamide at Different Concentrations and Temperatures

Table 8

Ultrasonic absorption (×10⁻¹⁵s²m⁻¹) at different temperatures and concentrations at 1 MHz for polyvinylchloride (PVC).

Concentration (%)	Temperature
	30°C	35°C	40°C	45°C	50°C	55°C	60°C	65°C
1.0	3.56	3.52	3.47	3.44	3.40	3.34	3.31	3.20
0.8	3.55	3.50	3.45	3.41	3.38	3.28	3.22	3.16
0.6	3.51	3.47	3.42	3.38	3.35	3.25	3.20	3.05
0.5	3.48	3.45	3.38	3.35	3.33	3.21	3.18	3.03
0.4	3.45	3.41	3.35	3.32	3.29	3.18	3.15	3.01
0.3	3.42	3.39	3.32	3.30	3.25	3.21	3.14	3.01