Polytrimethyl-silylacetylene

A derivative of polyacetylene that is more stable in air and soluble in organic solvents when doped with iodine, is polytrimethyl-silylacetylene (PTMSA). Though the derivative has a conductivity only one ten-millionth that of doped polyacetylene, it can be used as precursor to a wide range of other conductive derivatives. One such derivative is polyfluoroacetylene (polyacetylene in which all of he hydrogen atoms are replaced by fluorine), which according to calculations, would be electrically conductive without the need of dopants. 

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