Fig. 3. The FTIR spectra of (A) pure GLYMO, (B) pure 4-HPBA and (C) the bare CuONPs, GLYMO-grafted CuONPs and CuONPs grafted with GLYMO and 4-HPBA. (D) XRD pattern of CuONPs annealed at 100 °C. The largest peak in the XRD results was used to measure the crystallite size. (E) EDX analysis of CuONPs.