A Study of the Deformation, Network, and Aging of Polyethylene Oxide Films by Infrared Spectroscopy and Calorimetric Measurements

Table 2

Relative values of the extinction coefficient, 𝜀, for orientation-sensitive bands of PEO [11, 12].

CH stretching 3000–2650	Overlap‖and ⟂ vibrations	ε∥ ≈ε⊥
CH bending 1500-1400	1470: ‖ 1463: ⟂	ε∥ ≈ε⊥
CH2 wagging/twisting	1343:‖ 1359:⟂	ε∥>ε⊥
CH2 wagging/twisting	1280 ⟂	ε∥<ε⊥
CH2, CO rocking/stretching	1241: ‖ 1235 ⊥	ε∥>ε⊥
CH2, CO rocking/stretching	Overlap ‖ and ⊥ 1200–990	ε∥ ≈ε⊥
CH2 rocking CO stretching	1060 ⊥	ε∥<ε⊥
CH2 rocking CO stretching	963: ‖ 947: ⊥	ε∥>ε⊥
CO/CH2 rocking/stretching	844: ⊥	ε∥<ε⊥