A clear trend is observed at the two BO/OH–OL molar ratios studied, in other words, the lower the OL initial concentration the higher the apparent average M w of the obtained LBP, which makes sense since by increasing the initial OL concentration there is an increase in the –OH concentration increasing the probability of the termination step by attack of the –OH to the growing polymer ( Scheme 2 ) avoiding the THF incorporation and consequently obtaining LBPs with lower apparent average Mw.
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Lignin-Based Polyols with Controlled Microstructure by Cationic Ring Opening Polymerization.
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