At low magnetic fields, the...Vertically aligned polyacetylene thin films were synthesized in homeotropic nematic liquid crystal (LC) solvents, in which the homeotropic orientation of an LC, 4-(trans-4-n-pentylcyclohexyl)hexyloxybenzene, is strengthened by addition of newly synthesized LCs having two mesogenic cores, 1,6-bis-[(4-trans-n-pentylcyclohexyl)phenoxy]hexane or 1,8-bi...The electronic properties of pure polyacetylene have been studied on the basis of the one-dimensional tight-binding LCAO-SCF-MO calculations. The former gave a soluble polymer with a thienyl...A new method for oxidative coupling of mono-substituted acetylenes to corresponding di-substituted butadiynes under anaerobic conditions was applied to polycondensation of acetylene to carbyne, giving both a soluble sticky product and an insoluble black powder. or. Hideki Shirakawa is a popular Chemist from Japan. Hideki Shirakawa held his Nobel Lecture December 8, 2000, at Aula Magna, Stockholm University. See Photos. He was presented by Professor Bengt Nordén, Chairman of the Nobel Committee for Chemistry. People born on a Thursday are naturally well-meaning and open. The geometry of polyacetylene can be either cis or trans and can be controlled through modification of the reaction conditions Join ResearchGate to find the people and research you need to help your work.© 2008-2020 ResearchGate GmbH. Polymerizations of the liquid crystal-substituted acetylene monomer were carried out using a Rh-based or Fe-based catalyst. We will continue to update information on Hideki Shirakawa’s parents.Like many famous people and celebrities, Hideki Shirakawa keeps his personal life private. Long after I became a polymer scientist, I occasionally remembered a short composition I had written during my last year in junior high school. Aromatic type liquid crystalline π-conjugated polymers showed emission function, electrical conductivity, and good electrochemical properties, making them ideal for energy applications as batteries ... Other hairy-rod LC conjugated polymers include polythiophene (PT), 29-31 poly(p-phenyleneethynylene) (PPE), 32,33 and poly(p-phenylenebutadiynylene) (PPB). As young adults during the McCarthy Era, many members of this generation felt it was dangerous to speak out. We found that the morphology crucially depends on the solvent, the catalyst concentration, the aging temperature, and the polymerization time.New crystalline conjugated polymer, poly(mono-substituted acetylene) was synthesized by introducing an azobenzene moiety as a mesogen core into side chain. Shirakawa shared the prize with his research partners, the American physicist Alan Jay Heeger and the New Zealand-born American chemist Alan Graham MacDiarmid for discovery and development of conductive polymers. Email or Phone: Password: Forgot account? Hideki Shirakawa. Look for popular awards and laureates in different fields, and discover the history of the Nobel Prize. The polymer shows good solubility in common organic solvents, good processability for making thin f...Alternate conjugated copolymers consisting of phenylene or biphenylylene unit and linear carbons unit such as cumulene and polyyne were synthesized. As I recalled, I wrote something about my wish to be a scientist in the future and to conduct research on plastics useful for ordinary people. Hideki Shirakawa Biographical F or the ten years from the third grade of elementary school to the end of high school, I lived in the small city of Takayama, a town of less than sixty thousand, located in the middle of Honshu, Japan. The polymer showed liquid crystalline, electrical conductive and p...Helical polyacetylene [(CH)x] thin films were synthesized in chiral nematic (N*) liquid crystal (LC) solvents. The Nobel Prize in Chemistry 2000 was awarded jointly to Alan J. Heeger, Alan G. MacDiarmid and Hideki Shirakawa "for the discovery and development of conductive polymers".

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