from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun organic chemistry Any of a class of organic compounds containing a acetylene (-C≡C-) repeat units, especially any that occur naturally in some composite plants.
  • noun organic chemistry A black polymer, derived from acetylene, containing alternating single and double bonds in a (-CH=CH-) repeat unit; it is an organic semiconductor.


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  • The soliton in polyacetylene was born with the observation of an electron spin resonance (esr) signal in the pure material where there should not have been one.

    Alan Heeger - Autobiography

  • These two properties are essential for the formation of any film, and they were inherent in polyacetylene.

    Hideki Shirakawa - Autobiography

  • Since we had found previously that by adding bromine to the golden (SN) x material, we could increase its conductivity tenfold, we thought that perhaps the impurity in the polyacetylene was acting as a dopant and was actually increasing the conductivity of the polyacetylene, rather than decreasing it.

    Alan G. MacDiarmid - Autobiography

  • In 1977 a paper entitled "Synthesis of electrically conducting organic polymers: Halogen derivates of polyacetylene" was published in the Journal of the American

    The Nobel Prize in Chemistry: The Development of Modern Chemistry

  • As a result, we found that the emergence of electrical conductivity on the doped polyacetylene was due to the creation of carbocations or positively charged solitons associated with withdrawing of p electrons from polyacetylene by the dopant when iodine was used as an acceptor dopant.

    Hideki Shirakawa - Autobiography

  • The initial purpose of this study was to determine the polymierization mechanism of polyacetylene using the Ziegler-Natta catalysts.

    Hideki Shirakawa - Autobiography

  • We succeeded in simultaneously polymerizing acetylene and synthesizing uniaxially oriented polyacetylene films by orienting the catalyst solution of liquid crystal solvent under flow condition or magnetic field.

    Hideki Shirakawa - Autobiography

  • I could say that nature had prepared us for the way to make polyacetylene film.

    Hideki Shirakawa - Autobiography

  • Later, through the measurements of various absorption spectra of this thin film, we determined the molecular structure of polyacetylene, and thus, we fulfilled the initial purpose of our work.

    Hideki Shirakawa - Autobiography

  • Initially I was reluctant to work in this field, but actually, I realize that my experiences in this laboratory were of great importance to me when I worked with polyacetylene later on.

    Hideki Shirakawa - Autobiography


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