Word: polymerized
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Dates: during 1970-1979
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Now the British have come up with a better solution. The big packaging firm of Coloroll, Ltd., is producing plastic bags that will decompose naturally in five years. The secret: addition of clean, dry starch to plastic polymers. "By putting in the starch," explains Inventor Gerald J.C. Griffin, a teacher...
Scientists long suspected that polymers-macromolecules made up of chains of smaller molecules-might be custom-tailored to create an almost infinite variety of materials. Flory, who began his work 40 years ago as a member of the Du Pont research team that developed nylon, showed the way. He devised...
By far, the greatest attention was devoted to developing the various sunshades. That effort required the skills and ingenuity of a wide assortment of specialists, ranging from pipefitters and seamstresses to space physicists and polymer chemists (who were needed to evaluate the effect of solar radiation on the thin, aluminized...
Ever since Du Pont scientists in the 1930s mixed coal tar, air and water to produce nylon, the wizards of Wilmington, Del., have been searching and researching for another equally profitable synthetic smash. By 1964, Du Pont chemists thought that they had found it: a porous polymer that looked and...
Now a completely absorbable, non-irritating suture material has been developed at Lederle Laboratories' Davis and Geck Division in Pearl River, N.Y. To create the catgut substitute, which is trade-named Dexon, chemists tested 225 synthetic compounds before they hit upon polyglycolic acid, a polymer or long-chain molecule...