XPS Study of the Chemical Structure of Plasma Biocopolymers of Pyrrole and Ethylene Glycol

Figure 2

Atomic structure of pyrrole (a) with N/C = 0.25 and ethylene glycol (b) with O/C = 1. See the positions in the pyrrole ring and the respective chemical state: N1 (C–NH–C), C2 (C=CH–N), C3 (C=CH–C), C4 = C3, and C5 = C2. In ethylene glycol, C and O have only one chemical state, which are C–CH₂O and C–O–H, respectively.

(a)

(b)