Table 1: Vibrational phase and Raman tensor form of the Raman spectrum of polyethylene [32,33,42,43].
Raman shift /cm-1 | Mode | Phase | Raman tensor |
1063 | νas (C-C) | Trans chain | B2g + B3g |
1080 | ν (C-C) | Amorphous | - |
1130 | νs (C-C) | Trans chain | Ag + B1g |
1298 | νt (C-C) | Crystalline | B2g + B3g |
1313 | νt (C-C) | Amorphous | - |
1418 | δ (CH2) ω (CH2) |
Crystalline (orthorhombic) |
Ag |
1440 | δ (CH2) | Amorphous trans (intermediate) |
Ag + B1g |
1460 | δ (CH2) | Amorphous | Ag + B1g |
ν: stretching, νas: anti-symmetric stretching, νs: symmetric stretching, νt: twisting, δ: bending, ω: wagging