SYNTHESIS AND POLYMERIZATION OF FLUORINATED SULFUR MODIFIED NITROSO RUBBER.
Quarterly rept. no. 5, 1 Jul-30 Sep 64,
PENINSULAR CHEMRESEARCH GAINESVILLE FL
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A number of fluorine-containing diolefins were used as comonomers or termonomers. Perfluorobutadiene gave an elastic gum with CF3NO. A terpolymer of CF3SCFNOCF2Cl with CF3NOCF2CF2 was prepared. Low molecular weight nitroso polymer was prepared for NMR analysis. The use of chain transfer agents to obtain predetermined end groups is being examined. Efforts to prepare SF5COOH and SF5CF2COOH continued. Silver pentafluorobenzoate was reacted with nitrosyl chloride to give pentafluorobenzoyl nitrite, which apparently decarboxylates slowly under vacuum to give pentafluoronitrosobenzene. p-Nitrosotetrafluorobenzoic acid was not isolated from the pyrolysis of tetrafluoroterephthaloyl mononitrite. Nearly 400 g. of CF3NO were prepared. Author