Carothers, Wallace Hume

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Carothers, Wallace Hume

(kərŭth`ərz), 1896–1937, American chemist, b. Burlington, Iowa. He received his doctorate at the Univ. of Illinois in 1924, then taught organic chemistry there and at Harvard. In 1928 he was made head of the research group in organic chemistry of the E. I. du Pont de Nemours company in Wilmington, Del. His work there on compounds of high molecular weight led to the discovery of the first synthetic rubberrubber,
any solid substance that upon vulcanization becomes elastic; the term includes natural rubber (caoutchouc) and synthetic rubber. The term elastomer is sometimes used to designate synthetic rubber only and is sometimes extended to include caoutchouc as well.
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, neoprene. While with du Pont, he also investigated the physical and chemical properties of polyamides, showing that these compounds could be melt-spun into fibers or made into transparent film. This work resulted in the discovery of nylonnylon,
synthetic thermoplastic material characterized by strength, elasticity, resistance to abrasion and chemicals, low moisture absorbency, and capacity to be permanently set by heat. After 10 years of research E. I.
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.

Carothers, Wallace Hume

 

Born Apr. 27, 1896, in Burlington, Iowa; died Apr. 29, 1937, in Wilmington, Del. American scientist in the field of polymer chemistry and technology. Member of the National Academy of Sciences of the USA (1936).

Carothers graduated from the University of Illinois in 1921, then taught organic chemistry at several American universities (1921–28). He became chief chemist at the research laboratory of E. I. du Pont de Nemours and Company in 1928. In 1931, together with J. A. Nieuwland, Carothers synthesized a chloro-prene rubber—neoprene. He produced synthetic musk for the perfume industry in 1932. Carothers formulated a method of preparing polyamide for the production of synthetic nylon fiber in 1937. He aided the transformation of polymer chemistry into an independent field of organic chemistry. Carothers also proposed a theoretical substantiation for polycondensation and introduced the concepts of monomer functionality and linear and three-dimensional polycondensation into the chemistry of polymers.

WORKS

High Polymers, vol. 1: Collected Papers of W. H. Carothers on HighPolymeric Substances. Edited by H. Mark and G. S. Whitby. NewYork, 1940.
References in periodicals archive ?
Carothers was not engaged in the practice of medicine during the time the Practice was in business as required by New York law.[6]
Carothers, who holds a master's degree in Economic and Workforce Development, began as an intern at the Harrison County Development Commission, advancing to the position of Director of Industrial Development within five years.
"When I see the benefits of LIHTC, I don't see it as a benefit to just one individual as much as I do an entire family or generation," says Carothers. Looking at the situation on a macro scale, analyzing the five-to-10-year impacts rather than year over year, he adds, illustrate the "trickle up" effect LIHTC has on the entire apartment housing sector.
Even as a high school student who enjoyed and excelled at math, biology and technology, Carothers recalls the need he had even then to see the practical applications of all that he was learning and how it could ultimately benefit society.
Publishers can now see how not only groups and audiences engage, but also how individual, high-value prospects engage with different types of content," adds Carothers.
Thomas Carothers and Diane de Gramont have done contemporary participants in these debates a great service by writing a thorough and analytically insightful book on the history and evolution of thinking about development aid and politics.
US delegation included Kathleen Meyer, Naveed Baqir, Rebecca Faber, Tunde Durosomo, Baverley Bexter, Kewal Likhyani, Martha Carothers, Julie Rumschlag, Neelam Likhyani and Bruce Bigatel.
Presenters include co-editors Danielle Resnick and Nicolas van de Walle, and the event will be moderated by CEIP Fellow, Thomas Carothers.
The interconnected stories that compose the novel follow the descendants of Lucius Quintus Carothers McCaslin (old Carothers), founding patriarch of three families--the white McCaslin, white Edmonds, and black Beauchamp lines.
Cross is survived by two daughters, Nancy (Cross) Carothers of Kennmore, Wash., and Susan (Cross) MacElhiney and her husband, Peter, of Longmeadow; five grandchildren, Susan Alfaro of Carmel Valley, Calif., Karen Eppley, MD, and husband, Robert, MD, of Orinda, Calif., Barbara O'Brien and husband, Martin, of San Diego, Calif., Peter S.
For example, it is not at all unusual for men to be empathic and women to be good at math - characteristics that some research has associated with the other sex, said lead author Bobbi Carothers, who completed the study as part of her doctoral dissertation at Rochester.