Shirakawa Hideki

born Aug. 20, 1936, Tokyo, Japan

Japanese chemist.

He earned a Ph.D. from the Tokyo Institute of Technology in 1966. After graduation he began teaching at the University of Tsukuba. In 1977 he started collaborating with Alan J. Heeger and Alan G. MacDiarmid, conducting experiments on the polymer polyacetylene. Their work demonstrated that certain plastics can be chemically changed to conduct electricity almost as readily as metals. Other conductive polymers were later discovered, and the finding was expected to play a significant role in the emerging field of molecular electronics. With Heeger and MacDiarmid, Shirakawa was awarded the Nobel Prize for Chemistry in 2000.

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▪ Japanese chemist
born August 20, 1936, Tokyo, Japan

      Japanese chemist who, with Alan G. MacDiarmid (MacDiarmid, Alan G.) and Alan J. Heeger (Heeger, Alan J.), won the Nobel Prize for Chemistry in 2000 for their discovery that certain plastics can be chemically altered to conduct electricity almost as readily as metals.

      Shirakawa earned a Ph.D. from the Tokyo Institute of Technology in 1966. That same year he joined the faculty of the Institute of Materials Science at the University of Tsukuba, where he became professor of chemistry in 1982.

      In 1974 Shirakawa and associates serendipitously synthesized polyacetylene, a polymer that was known to exist as a black powder, into a silvery film that possessed many properties of metal. In 1977 he began collaborating with MacDiarmid and Heeger at the University of Pennsylvania, where they exposed polyacetylene to iodine vapour. Their plan was to introduce impurities into the polymer much as in the doping process used to tailor the conductive properties of semiconductors. Doping with iodine increased polyacetylene's electrical conductivity by a factor of 10 million, making it as conductive as some metals. Other conductive polymers were later discovered and were expected to play a significant role in the emerging field of molecular electronics.

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Universalium. 2010.

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  • Hideki Shirakawa — (jap. 白川英樹 Shirakawa Hideki, * 20. August 1936) ist ein japanischer Chemiker. Zusammen mit Alan J. Heeger und Alan MacDiarmid erhielt er im Jahr 2000 den Chemie Nobelpreis für die Entdeckung und Entwicklung leitfähiger Polymere. Ausgangspunkt für …   Deutsch Wikipedia

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  • Hideki Shirakawa — Professor Hideki Shirakawa 白川 英樹 Shirakawa Hideki , born in Tokyo on August 20, 1936) is a Japanese chemist and winner of the 2000 Nobel Prize in Chemistry for his discovery of conductive polymers together with physics professor Alan J. Heeger… …   Wikipedia

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  • Hideki Shirakawa — (白川英樹) Químico japonés. Doctorado en Química por el Instituto Tecnológico de Tokio en 1966. Ese mismo año ocupó la plaza de profesor asociado en el Instituto de Ciencias de los Materiales en la Universidad de Tsukuba (Japón). Desde 1982 es… …   Enciclopedia Universal

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