Neoprene

Neoprene, also known as polychloroprene, is a family of artificial rubbers that ar produced by polymerization of chloroprene. It is the first commercially available artificial rubber. In the early 1900s, the rise of the automobile industry, in particular, had created a strong demand for rubber. Unfortunately, the availability of rubber was limited by shortages and spiraling prices. Furthermore, the particular properties of natural rubber, such as its unload of resistance to oxygen, oils, and extreme temperatures, restrict its usefulness in sealed applications. These limitations stimulated a search for special-purpose rubber substitutes. Neoprene was invented by scientists in 1930 after Dr. Elmer K. Bolton of DuPont laboratories attended a lecture by professor Julius Arthur Nieuwland, a professor of chemistry at the University of Notre Dame. Nieuwlands research was trim back on acetylene chemistry, which is the research into a valuable retrace of compounds in organic syn thesis, and through his work, he produced divinyl acetylene, a gelatin that firms into an elastic compound similar to rubber when passed over second dichloride. After DuPont purchased the patent rights from the university, Wallace Carothers of DuPont took over commercial development of Nieuwlands discovery.

DuPont focused on monovinyl acetylene, which is a certain gas with a spin point of 5ºC, and reacted the substance with hydrogen chloride gas, manufacturing chloroprene. (Picture) This diagram shows the polymer crease of neoprene. It consists of carbon, chlorine and hydrogen atoms bonded together, with a double bond surround ed by the carbon atoms. DuPont first market! ed the compound in November 1931 under the pile name DuPrene, but its ability to be commercialized was hindered by the complex manufacturing process, which left the product with a foul odor. A new process was developed in response to this problem, and the companionship began selling the material to manufacturers. DuPont then worked...If you want to get a full essay, order it on our website: BestEssayCheap.com

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