Word: thioether
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Dates: during 1949-1949
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...natural wool, the long molecules are connected by "disulphide cross-linkages." These the chemists replaced by "bis-thioether cross-linkages." The artificial links are as strong mechanically as the natural ones, so the wool is as strong. The links are also stronger chemically, and the moths' digestive juices cannot break them down. Moth larvae put on a diet of modified wool quickly starve to death, even though a few nutritious food stains are added. Moncrieff predicts that when all wool is modified in this way, clothes moths will have to return to their primitive diet...
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