Poly(o-aminobenzyl alcohol) (POABA) was grafted with poly(ethylene oxide)s (PEOS) through the reaction of tosylated PEO with both the hydroxide and amine moieties of reduced POABA. Reduced POABA was prepared through the acid-mediated polymerization of o-aminobenzyl alcohol, followed by neutralization with an aqueous ammonium hydroxide solution and reduction with hydrazine. The grafted copolymers were very soluble in common polar solvents, such as chloroform, tetrahydrofuran, and dimethylformamide, and the copolymers with longer PEO side chains (number-average molecular weight > 164) were even water-soluble. The conductivities of the doped grafted copolymers decreased with increasing PEO side-chain length because of the nonconducting PEO and its torsional effect on the POABA backbone. The conductivity of highly water-soluble POABA-g-PEO-350 was 0.689 x 10(-3) S/cm, that is, in the semiconducting range. (C) 2004 Wiley Periodicals, Inc.