from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun organic chemistry Any of a class of
organic compoundscontaining 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 singleand double bondsin a (-CH=CH-) repeat unit; it is an organic semiconductor.
Sorry, no etymologies found.
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.
These two properties are essential for the formation of any film, and they were inherent in polyacetylene.
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.
In 1977 a paper entitled "Synthesis of electrically conducting organic polymers: Halogen derivates of polyacetylene" was published in the Journal of the American
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.
The initial purpose of this study was to determine the polymierization mechanism of polyacetylene using the Ziegler-Natta catalysts.
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.
I could say that nature had prepared us for the way to make polyacetylene film.
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.
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.