QM ELASTOMER CONTRACT.
Progress rept. no. 2, 27 Sep-26 Dec 63,
FMC CORP PRINCETON N J
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Reaction of dimethylchlorosilane with 3, 4, 4 Trifluoro4-bromo-3-chlorobutene-1 on a 0.5 mol scale at 75C. in the presence of chloroplatinic acid catalyst provided a 44 conversion to the adduct, C1-SiCH32CH2 CH2 CFC1CF2Br. Repetition of the reaction on a 5 mol scale was started and the product obtained will be hydrolyzed and dehalogenated to form the desired disiloxane monomer, CF2 CFCH2CH2SiCH322-O-. Author