Colm Dougan’s Post

A chance meeting during a coffee break led to the discovery that plastic can be made to behave like a metal by conducting electricity. At the beginning of the 1970s, Japanese chemist Hideki Shirakawa discovered that it was possible to synthesise an organic polymer, and type of plastic, called polyacetylene in a new way. When he accidentally added too much catalyst, Shirakawa was surprised when a beautiful silvery film appeared. In another part of the world, chemist Alan MacDiarmid and physicist Alan Heeger were experimenting with a metallic-looking film of the inorganic polymer sulphur nitride. MacDiarmid referred to this at a seminar in Tokyo when another happy accident occurred; MacDiarmid met Shirakawa during a coffee break. When MacDiarmid heard about Shirakawa’s discovery of a plastic that also gleamed like silver, he invited Shirakawa to the University of Pennsylvania in Philadelphia. They set about modifying polyacetylene by oxidation with iodine vapour. Shirakawa knew that the optical properties changed in the oxidation process and MacDiarmid suggested that they ask Heeger to take a look at the films. One of Heeger’s students measured the conductivity of the iodine-doped trans-polyacetylene and – eureka! The conductivity had increased ten million times! In the summer of 1977, Heeger, MacDiarmid, Shirakawa and co-workers, published their discovery that it is possible to make conductive polymers – essentially plastic that can conduct electricity – that can be used in electronics and other applications. Their breakthrough earned them the Nobel Prize in Chemistry 2000 and now, conducting polymers are in everyday electronic devices including our phones, solar cells and are used for flexible, wearable biosensors, neural electrodes and drug delivery systems in healthcare. Learn more: https://lnkd.in/dmtJ_EsX

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The best piece of advice I got as a young person entering the workforce was: "Take your breaks and eat lunch away from your desk. Take some time to clear your head, talk to coworkers and think new thoughts." In the employee lunch room, I got to know folks from different parts of the organization and got good ideas and different perspectives.

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