METHOD OF PRODUCING HYDROXYLATED POLYOLEFINS Russian patent published in 2020 - IPC C08F2/00 C08F2/06 C08F2/38 C08F136/06 C08F136/08 C08L9/00 

Abstract RU 2729997 C1

FIELD: chemical or physical processes.

SUBSTANCE: present invention relates to a method of producing hydroxylated polyolefin by live polymerisation. Method includes steps of: providing a reaction mixture containing a diene, a polar solvent, a nonpolar solvent and an anionic initiator; a step for enabling the polymerisation to proceed in the reaction mixture; a step for stopping the polymerisation reaction by adding an epoxide; and a step for converting the oxyanion to obtain a hydroxylated polyolefin. Polymerisation is carried out at temperature equal to 50 °C or lower. Ratio of the number of moles of the polar solvent to the amount of moles of the anionic initiator is 3 or less. Amount of diene contained in the reaction mixture is 40 wt % or less in terms of total weight of reaction mixture.

EFFECT: technical result is the development of a method of producing hydroxylated polyolefins having high degree of functionalisation with hydroxy groups of more than 99 %.

12 cl, 4 tbl, 12 ex

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RU 2 729 997 C1

Authors

Kue Zhyulen

Shvarts Markus

Shtertsel Valter

Dates

2020-08-13Published

2016-12-05Filed