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Journal of Engineering and Applied Science

Table 2 Vibrational modes and band assignments for the polymer electrolytes (PMMA-LiTf-nanochitosan)

From: Thermal and mechanical studies of nanochitosan incorporated polymethyl methacrylate-based composite electrolytes

Vibration Peaks

(cm−1)

Band assignments

1191

O–CH3 stretching of PMMA

1234

C–O stretching of PMMA

1452

CH3 asymmetric bending of PMMA

1752

C=O stretching of PMMA

2954

CH3 asymmetric stretching of PMMA

3492

Combined peaks of OH and NH stretching vibration of chitosan

1646

NH bending of amide group of chitosan

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