. Author manuscript; available in PMC: 2019 Apr 26.

Published in final edited form as: Nano Res. 2014 Oct 23;8(3):774–789. doi: 10.1007/s12274-014-0560-6

Table 2.

Assignment of the bands of the SMA spectrum. Reference spectra were the spectra of polystyrene [1] and of succinic acid.

Position (cm^-1)		Chemical Function
SMA spectrum	reference spectrum
3083	3083	C-H stretching in the styrene ring (in ortho and meta of the substituted carbon)
3060	3061	C-H stretching in the styrene ring (in para of the substituted carbon)
3026	3029	C-H stretching in the styrene ring (in ortho and meta of the substituted carbon)
2932	2923	antisymmetric C-H stretching of the polymer backbone CH₂
2858	2851	symmetric C-H stretching of the polymer backbone CH₂
1705	1655	COOH stretching in the maleic acid
1602	1602	ring vibration (C-C stretching)
1565	1550	COO^- stretching in the maleic acid
1493	1493	ring vibration (C-C stretching)