Accession Number : AD0754170

Title :   The Synthesis of Siloxane Polymers with Polyfluoro Aromatic Groups at the Atoms of Silicon (Sintez Siloksanovykh Polimerov s Poliftoraromaticheskimi Gruppami u Atomov Kremniya),

Corporate Author : ROYAL AIRCRAFT ESTABLISHMENT FARNBOROUGH (ENGLAND)

Personal Author(s) : Yuzhelevasii,Yu. A. ; Kagan,E. G. ; Klebanskii,A. L. ; Zevakin, I. A. ; Kharlamova,A. V.

Report Date : NOV 1972

Pagination or Media Count : 11

Abstract : The condensations of methyl(pentafluorophenyl)diethoxysilane, methyl(tetrafluorochlorophenyl)diethoxysilane and bis(pentafluorophenyl)diethoxysilane respectively with 1,3-dichlorotetramethyldisiloxane using electrophilic catalysts are described. The results of homo- and co-polycondensation with dimethyldichlorosilane of bis(dimethylchlorosilyl)tetrafluorobenzene and methyl(pentafluorophenyl)dichlorosilane are reported. Properties and T(g) values of the resultant polymers are also discussed. (Author)

Descriptors :   (*SILOXANES, *POLYMERIZATION), (*SILANES, POLYMERIZATION), (*SILICONE PLASTICS, SYNTHESIS(CHEMISTRY)), ELASTOMERS, CONDENSATION REACTIONS, HALOGENATED HYDROCARBONS, FLUORINE COMPOUNDS, TRANSITION TEMPERATURE, SOLUBILITY, CATALYSTS, IRON COMPOUNDS, USSR

Subject Categories : Organic Chemistry
      Elastomers and Rubber

Distribution Statement : APPROVED FOR PUBLIC RELEASE