Synthesis of polyperfluoroalkylenetriazines

Four new s-triazine polymers were prepared by the mercury-induced coupling of bromodifluoromethyl-substituted ditriazinyl-perfluoroalkane derivatives. Each polymer was composed of CF₃-substituted s-triazin rings alternately joined with ? CF₂CF₂? segments and \documentclass{article}\pagestyle{empty}\begin{document}$\hbox{---}\hskip-5pt({\rm CF}_2 )_8 \hbox{---}$\end{document}, a mixture of ? (CF₃CFO(CF₂)₅OCF(CF₃)? and ? (CF₃)CFOCF₂CF(CF₃)OCF₂)₄? , ? CF₂OCF₂? , or ? CF₂SCF₂? , segments. All polymers were elastomeric and displayed high temperature stability on thermogravimetric analysis. The polymers containing either ? CF₂OCF₂? or ? CF₂SCF₂? segments showed high temperature limits slightly lower than the other two systems.