METHOD OF PRODUCING A POLYMER WITH INTERNAL MICROPOROSITY PIM-1 Russian patent published in 2017 - IPC C08G65/40 B01D53/22 B01D71/52 

FIELD: chemistry.

SUBSTANCE: invention relates to a process for the preparation of a polymer with an internal microporosity PIM-1 of formula I comprising polyheterocyclization of 5,5',6,6'-tetrahydroxy-3,3,3',3'-tetramethyl-1,1'-spirobicindane with tetrafluoroterephthalonitrile in the presence of potassium carbonate under heating, polyheterocyclization is carried out in dimethylsulfoxide with the addition of toluene with vigorous stirring at a rotational speed of the stirrer (1-10)⋅10³ rpm, and it is accompanied by precipitation of the desired product I

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EFFECT: efficient and environmentally friendly way of producing a polymer with internal microporosity PIM-1, which ensures the production of a better product.

3 cl, 1 tbl, 3 ex