Polysilahydrocarbon synthetic fluids. 1. Synthesis and characterization of trisilahydrocarbons

Autor: Reinhold H. Kratzer, Kazimiera J. L. Paciorek, J. G. Shih, Carl E. Snyder, Bruce B. Randolph
Rok vydání: 1990
Předmět:
Zdroj: Industrial & Engineering Chemistry Research. 29:1855-1858
ISSN: 1520-5045
0888-5885
DOI: 10.1021/ie00105a017
Popis: Trisilahydrocarbons, a newclass of compounds of the general formula R 2 Si(C 8 H 16 SiR 3 ) 2 , were synthesized by reaction of alkyllithium or alkylmagnesium halides with the novel bis[8-(trichlorosilyl)octyl]dichlorosilane precursor. By varying R groups from C 6 to C 10 and by using a combination of different R groups, we obtained a series of fluids of wide liquid ranges. The 40°C viscosities ranged from 74 to 133 cSt, and 100°C viscosities were from 12.6 to 20.4 cSt. The fluid with R=n-C 8 H 17 had a pour point of −54°C and a vapor pressure at 125°C of 1.6×10 −7 Torr. The newly developed process allows the preparation of fluids with closely tailored properties for application in environments where extremes of exposure conditions are encountered
Databáze: OpenAIRE