Copolymerization of toluene with tetrafluoromethane or octafluorocyclobutane by plasma technique

Plasma copolymerization of toluene with tetrafluoromethane or octafluorocyclobutane was carried out in a capacitively coupled tubular reactor with external electrodes. The polymer structure was characterized by means of XPS, IR, and pyrolysis/GC/MS and the condensates of the gases in the plasma reaction chamber were measured by GC–MS. It is observed that the monomers undergo a plasma states polymerization in a glow discharge and only those monomer fragments with sufficient reactivity join the copolymerization. The types of fluorine‐containing groups in the polymer structure are related to the chemical structure of the flurocarbons. The fluorine content depends upon the discharge power, the system pressure, and the fraction of fluorocarbons in the monomers