Method for preparing aliphatic polyketone by continuous solution polymerization process and aliphatic polyketone

Abstract

The present disclosure provides a method for preparing aliphatic polyketone by continuous solution polymerization process and aliphatic polyketone; the method comprises the following steps: a) continuously feeding carbon monoxide, an olefin compound and a solvent system containing catalyst into a continuous flow reactor for solution polymerization to obtain an aliphatic polyketone; wherein the aliphatic polyketone has a particle size of 10 μm~50 μm, a particle size distribution width Span of 0.5~0.9, and a bulk density>0.35 g/ml. Compared with the prior art, in the method provided by the present disclosure, a solvent system containing a catalyst is adopted, and a continuous solution polymerization reaction is conducted to realize continuous feeding and continuous discharging, thereby effectively solving the problems such as difficulty in controlling the morphology of polymer particles, easy material hanging on the wall, low single-pot yield, and poor product repeatability in the traditional batch slurry process.

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