Metathesis cyclopolymerization of mono- or bissubstituted 1,6-heptadiynes is undergone to generate the ionic polyacetylenes (iPAs) with branched 1,2,3-ttriazolium pendants, which possess relatively high intrinsic ionic conductivities of 1.4 x 10(-5)-2.1 x 10(-5) S cm(-1) at 30 degrees C. The doping treatment with lithium bis(trifluoromethanesulfonyl) imide endows iPAs with enhanced ionic conductivities of 2.5 x 10(-5)-4.3 x 10(-5) S cm(-1). Further doping with iodine, iPAs show ionic and electronic dual conductivities of 4.5 x 10(-5)-7.1 x 10(-4) and 1.5 x 10(-6)-4.5 x 10(-6) S cm(-1), respectively. Therefore, the doped iPAs demonstrate the potential in the area of conducting polymers and polymeric electronics.