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a) Plot of Mw as a function of 2G-EHW conversion ([2G-EHW]:[G3] = 200 (◆), 400 (), 600 (), 1000 (). b) Semilogarithmic plots of ln([2G-EHWo]/[2G-EHWt]) as a function of time for the ROMP of 2G-EHW by G3. Conditions: [2G-EHW] = 90 mM; [G3] = 450 μM (◆), 220 μM (), 150 μM (), 110 μM (). Polymerizations were performed in anhydrous/degassed THF at ambient temperature.