A pH-responsive polyelectrolyte multilayer film with tunable interfacial properties

We report a facile and versatile approach to fabricate polyelectrolyte multilayer (PEM) films with chemically modifiable outer surface. A PEM film was prepared by layer-by-layer assembly of poly (2-aminoethyl methacrylate) (PAMA) polymethacrylic acid (PMAA), terminated partially tert-butyloxycarbonyl (Boc)-protected random copolymer (PAMA-co-PBocAMA) as the final layer. The obtained then cross-linked free amino groups in were quenched using EDC/NHS chemistry. layer treated via deprotection reaction, affording selectively located at As proof concept study, these functional used modify surface two model hydrophilic hydrophobic compounds, which tuned wettability PEM.