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・ Peel Thunder Football Club
・ Peel tower
・ Peel Trident
・ Peel Viking Sport
・ Peechelba, Victoria
・ Peechi Dam
・ Peechi-Vazhani Wildlife Sanctuary
・ Peechoho
・ Peeckelhaeringh
・ Peedee Formation
・ Peederga
・ Peedi Peedi
・ Peeds, Virginia
・ Peedu
・ Peege
PEEK
・ Peek
・ Peek & Cloppenburg
・ Peek & Poke (White Town album)
・ Peek (crater)
・ Peek (data type operation)
・ Peek (mobile Internet device)
・ PEEK and POKE
・ Peek baronets
・ Peek Freans
・ Peek'n Peak
・ Peek'n Peak Classic
・ Peek's Creek
・ Peek's law
・ Peek-a-Boo (boxing style)


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PEEK : ウィキペディア英語版
PEEK

Polyether ether ketone (PEEK) is a colourless organic thermoplastic polymer in the polyaryletherketone (PAEK) family, used in engineering applications.
==Synthesis==
PEEK polymers are obtained by step-growth polymerization by the dialkylation of bisphenolate salts. Typical is the reaction of 4,4'-difluorobenzophenone with the disodium salt of hydroquinone, which is generated in situ by deprotonation with sodium carbonate. The reaction is conducted around 300 °C in polar aprotic solvents - such as diphenyl sulphone.〔 〕〔David Kemmish "Update on the Technology and Applications of PolyArylEtherKetones" 2010. ISBN 978-1-84735-408-2.〕

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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