ELECTROACTIVE POLY(3,6-CARBAZOLEDIYL) WITH LATERAL AMINOALKYLDISILOXANE GROUPS

Poly[N-(9-dimethylamino 4,4,6,6-tetramethyl 5-oxa 4,6-disila nonyl) 3,6-carbazolediyl] was prepared by electrochemical synthesis. The solubility of this polymer in many organic solvents allows its characterization by GPC and C-13 NMR. DPBAR(n)'s are relatively low (congruent-to 6), probably due to a reaction of debromination which occurs during the synthesis of the monomer and leads to monofunctional reactants limiting the polymer growth. Electro-oxidation of solution-cast films gives rise to two reversible color changes: yellowish to green and green to blue. Films display a relatively good electrochemical stability in the blue state (up to 1.4 V vs SCE).