MODEL COMPOUNDS AND MONOMERS DERIVED FROM 1,1-DIFLUOROETHENE

Author(s):CHAMBERS, RD; APSEY, GC; ODELLO, P; MOGGI, G; NAVARRINI, W.

Source:MACROMOLECULAR SYMPOSIA

Volume 82, Issue 1, pages 33-50, May 1994

ABSTRACT:

Saturated model compounds, related to elastomers that are derived from co-polymers of CH2=CF2/CF2=CFCF3, have been synthesised and studied. Unsaturated compounds were obtained by both base- and Lewis-acid induced processes. Some reactions with antimony pentafluoride lead to remarkably stable carbocations, and even di-cations, and the nmr data for these systems is revealing about structure. Polyconjugated polymers may be obtained by this procedure. Preliminary studies are described, relating to the incorporation of crowded monomers into fluorocarbon polymers, ultimately, as a means of initiating cross-linking processes for curing elastomers.