Table 1. The chemical shifts of poly-GTAC-β-CD as well as poly-CM-β-CD and its corresponding protons.

Chemical shift δH/ppm	Annotation
5.76–5.60	OH-2, OH-3 of poly-β-CD
4.87–4.76	OH-1 of poly-β-CD
4.52–4.36	OH-6 of poly-β-CD
4.139–4.1408	-O-CH2-COOH
9.0–12.0	-COOH
3.3001–3.3008	-N+ (CH3)