Figure 2.
XPS chemical composition of PP-coated PS dishes and PP-coated polycaprolactone nanofibers (PCL NFs) aged two weeks supplemented with the chemical composition of PP-coated Si from our previous publication [37]: (a) elemental composition, (b) N/C and O/C ratios, (c) concentration of identified functional groups from C1s fitting, and (d) high-resolution C1s spectra with identified functional groups for PP-coated PCL NFs. PS dishes are denoted by full marks, PCL NFs are denoted by empty marks, and Si is denoted by half-full marks. CPA-10, CPA-33, CPA-150: PPs were deposited at the average RF power (Pav) of 10, 33, and 150 W, respectively.