Synthesis of homopolymers via multimetallic homocoupling methods using Pd(OAc)2 (5 mol %) Cu(OAc)2 (10 mol %), B(OH)3 (3 equiv), DMSO, rt, air, 48 h; (inset) polymer structure, molecular weights, and yield. * Synthesis of polymers at Pd(OAc)2 (2 mol %) Cu(OAc)2 (5 mol %), B(OH)3 (3 equiv), DMSO, rt, air, 48 h. Reactions (2 mL) were run at 0.09 M.