Finally, the reaction time was increased to 60 minutes (entry 8), 120 minutes (entry 9) and 240 minutes (entry 10) to improve polymer yield. Entry 10 resulted in 99% monomer conversion and a high polymer yield of 87%. Mw and Đ show consistency across all three reactions under the same conditions. We propose this uniformity is the result of polymer precipitation due to its insolubility at those molecular weights. Aliquots were taken from the polymerization reaction over 2 hours and analyzed by GPC (Fig. ) and 1 H NMR spectroscopy. The conversion of monomer 4 was assessed based on integration of the resonances in the 1 H NMR spectrum of monomer 4 compared to that of the electrolyte (nBu4NPF6) (S48-S49). Pseudo first-order behavior was observed during this polymerization indicating a constant concentration of reduced monomer and rapid polymerization (Fig. ).