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(a) Cyclic voltammetry of electro-polymerization of 50 mM Monomer I in anhydrous acetonitrile with 0.1 M tetrabutylammonium perchlorate (TBAP), potential window: −0.2 to 1.9 V, scan rate: 100 mV s−1. (b) Comparison of the electrochemical responses of P1 in citric acid buffer (pH = 2.0) with or without the Lewis acid (BBr3) treatment, at a sweep rate of 25 mV s−1. (c) The overall reaction scheme of electro-synthesis and de-methylation. (d) Expanded cycle 2 to cycle 5 in (a).
