Discussão:Polietileno

A sigla "UHWPE" está incorreta. A sigla correta a ser utilizada para este polímero é UHMWPE.

Fontes [1] [2] [3] [4] [5]


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Referencia ao tópico História

"The story of polyethylene starts in the early 1930s in Great Britain where, as in the whole industrialized world, there was the deeply recession time due to the Wall Street crash of the previous year and the research management of the research laboratories of I.C.I. in Winnington (Cheshire), opened in 1928, suggested to the physical chemistry group the pursuance of work involving special techniques. This suggestion led to a project to investigate what happens at high temperatures, under high vacuum or at high pressures. Two researchers, Eric William Fawcett and Reginald Oswald Gibson began to investigate, under the direction of John Cuthbert Swallow, the phenomena occurring in the field of high pressures, namely pressures of 1000 atm and higher and, among them, the possible effect of high pressure on chemical reactions. The reactions to be studied were not selected because they might be expected to be strongly affected by pressure on theoretical grounds, but rather it was hoped that compounds, that normally do not react, might react or that reactions, which normally need catalysts, might occur without them at high pressures. Fifty different chemical reactions were studied without any success, but one of the failures resulted, through a series of coincidences, in the discovery of polyethylene." fonte: [6]

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