Kang, K.-L. Kim, S.-H. Cho, H.-N. Choi, K.-Y. Choi, S.-K. 2024-01-21T23:02:21Z 2024-01-21T23:02:21Z 2022-01-10 1993-01 0024-9297 https://pubs.kist.re.kr/handle/201004/146318 A new class of substituted ionic polyacetylene was synthesized by metathesis polymerization with transition-metal catalysts. The monomers used were dihexyldipropargylammonium salts having bromide and tosylate as counteranions. It was found that MoCl5-based catalyst systems were very effective for the cyclopolymerization of the present ionic monomers. The resulting dark-red polymers exhibited good solubility in polar organic solvents such as methanol, DMSO, DMF, THF, CHCl3, etc., indicative of their ionic nature. Structure of the polymers was confirmed by IR, UV-visible, and 1H and 13C NMR spectroscopy. When doped with an acceptor such as iodine, the polymers exhibited a substantial increase in electrical conductivity (10？3 S/cm) compared to the undoped state (10？9 S/cm). ？ 1993, American Chemical Society. All rights reserved. English Ammonium compounds Catalysis Doping (additives) Electric conductivity Polymerization Spectroscopic analysis Cyclopolymerization Dihexyldipropargylammonium salts Metathesis catalysts Polar organic solvents Polyacetylenes A New Class of Conjugated Ionic Polyacetylene. Cyclopolymerization of Dihexyldipropargylammonium Salts by Metathesis Catalysts Article 10.1021/ma00069a019 1 Macromolecules, v.26, no.17, pp.4539 - 4543 Macromolecules 26 17 4539 4543 scopus 2-s2.0-0027649081 Article Ammonium compounds Catalysis Doping (additives) Electric conductivity Polymerization Spectroscopic analysis Cyclopolymerization Dihexyldipropargylammonium salts Metathesis catalysts Polar organic solvents Polyacetylenes conjugated ionic polyacetylene cyclopolymerization dihexyldipropargyl ammonium metathesis catalysts.