Abstract: | A covalently linked ultrathin multilayer film was fabricated from 2‐nitro‐N‐methyl‐diphenylamine‐4‐diazonium‐formaldehyde resin (NDR) and phenol‐formaldehyde resin (PR) in methanol in‐situ. The UV‐vis, XRD, AFM and FTIR show that this multilayer is of high regularity, smoothness and stability. |