METHOD OF PRODUCING α,ω - DIHYDROXYPOLYDIORGANOSILOXANES Russian patent published in 2020 - IPC C08G77/16 C08G77/06 

Abstract RU 2737804 C1

FIELD: chemistry.

SUBSTANCE: invention relates to chemical engineering of organosilicon compounds. Disclosed is a method of producing α,ω-dihydroxypolydiorganosiloxanes by reacting cyclotrisiloxane with water in a liquid ammonia medium in an autoclave at temperature of 20 °C to 100 °C. Initial cyclotrisiloxane used is a compound of general formula (R1R2SiO)3, where R1 denotes CH3 and/or C6H5, and R2 denotes CH3.

EFFECT: technical result is a process method which enables to obtain α,ω-dihydroxypolydiorganosiloxanes with high output without use of organic solvents and allowing to regulate molecular weight of product.

1 cl, 1 dwg, 1 tbl, 13 ex

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RU 2 737 804 C1

Authors

Anisimov Anton Aleksandrovich

Shchegolikhina Olga Ivanovna

Ershova Tatyana Olegovna

Minyajlo Ekaterina Olegovna

Vysochinskaya Yuliya Stanislavovna

Krylov Fedor Dmitrievich

Polshchikova Nataliya Vladimirovna

Bystrova Aleksandra Valerevna

Muzafarov Aziz Mansurovich

Meller Martin

Dates

2020-12-03Published

2019-12-31Filed