suppliers and utilized without further purification. 1,2-Diaminobenzene
(Alfa Aesar, 98%), benzenesulfonyl chloride (Alfa Aesar, 98%), pyridine
(Sigma-Aldrich, 99+), palladium on activated carbon (Pd/C, Acros Organics,
10% Pd), hexaketocyclohexane octahydrate (HKH·8H2O,
Fisher Scientific, 97%), terephthalaldehyde (ThermoFisher Scientific,
98%), anhydrous 1,4-dioxane (Acros Organics), mesitylene (Acros Organics),
sulfuric acid (H2SO4, Fisher Scientific, 94–98%),
diethylene glycol dimethyl ether (DEGDME, Sigma-Aldrich, anhydrous
99.5%), conductive carbon black (Ketjenblack-600JD), sodium hexafluorophosphate
(NaPF6, Alfa Aesar, 99+%), and sodium alginate (Alfa Aesar,
high viscosity).