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The reaction between carbon monoxide (CO) and the living Zr-poly(propylene) (Zr-PP) bond, which was prepared with Cp2ZrMe2/B(C6F5)3/AlOct3 catalyst system at –78°C, was investigated. The reaction products were analyzed by means of IR, 1H-NMR and GPC. Under the reaction conducted at –78°C, it could be found that CO was quantitatively incorporated into the Zr-PP bond to generate a terminal aldehyde group. And when the reaction was started at –78°C and gradually warmed up to room temperature, a ketone carbonyl in the polymer chain was formed.
Fukui et al. (2001) studied this question.