POLYMER DISPERSANTS, DISPERSANT CONCENTRATES, CONDUCTIVE CARBON DISPERSIONS, AND ELECTRODE SLURRY COMPOSITIONS, AND METHODS OF MAKING AND USE THEREOF

Copolymers having structural units of the residue of a substituted or unsubstituted, unsaturated organic nitrile monomer present in an amount from about 1 wt % to about 55 wt %, based on the total weight of the copolymer; and structural units of the residue of a substituted or unsubstituted, unsaturated, conjugated aromatic monomer selected from a conjugated aromatic ester monomer, a conjugated aromatic ether monomer, a conjugated aromatic amide monomer, a conjugated aromatic alkylene monomer, and combinations thereof, present in an amount from about 45 wt % to about 99 wt %, based on the total weight of the copolymer. Homopolymers and copolymers that are useful as dispersants. Dispersant concentrates, conductive carbon dispersions, electrode slurry compositions, positive electrodes, and electrical storage devices, using the dispersants. The dispersants are used in conductive carbon dispersions and electrode slurry compositions to achieve low viscosity at high solids content.