FIELD: synthetic rubber industry, more particularly manufacture of fluorine containing siloxane polymers. SUBSTANCE: present invention describes 1,3,5-trimethyl-1,3,5-tris (hexafluoroalkyl) cyclotrisiloxanes of general formula: [RfSi(CH3)O]3 wherein Rf is prepared by hydrolysis of respective methyl (hexafluoroalkyl) dichlorosiloxanes with sodium dicarbonate in the presence of pyridine in acetone at 20-25 C. The claimed compounds make it possible to obtain fluorine containing siloxane polymers which have both high heat and oil resistance. EFFECT: creation of readily available fluorine containing alkylmethylcyclotrisiloxanes used for manufacture thermo and oil resistant siloxane polymers.
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机译:领域:合成橡胶工业,更特别地,制造含氟硅氧烷聚合物。物质:本发明描述了通式为[R f Sub> Si(CH 3 Sub>)的1,3,5-三甲基-1,3,5-三(六氟烷基)环三硅氧烷O] 3 Sub>,其中R f Sub>是。所要求保护的化合物使得能够获得同时具有两种氟的含氟硅氧烷聚合物。高耐热性和耐油性。效果:创造出易于使用的含氟烷基甲基环三硅氧烷,用于制造耐热和耐油的硅氧烷聚合物。
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