发明名称 Oligomers of perfluoro(2,2-dimethyl-1,3-dioxole) and their fluorination products
摘要 Perfluoro(2,2-dimethyl-1,3-dioxole) forms oligomers on standing in the presence of an ether. The preferred ethers are aliphatic and cycloaliphatic, especially tetrahydrofuran. Free radical generators, especially peroxydicarbonates, may be added to the reaction medium. The oligomers have a degree of polymerization of about 2-8. They are useful as lubricants, hydraulic fluids, heat transfer agents, and plasticizers, and as intermediates to oligomeric acid fluorides and acids, which acids are useful surfactants.
申请公布号 US4560778(A) 申请公布日期 1985.12.24
申请号 US19840650865 申请日期 1984.09.14
申请人 E. I. DU PONT DE NEMOURS AND COMPANY 发明人 SQUIRE, EDWARD N.
分类号 C07D317/42;(IPC1-7):C07D317/00 主分类号 C07D317/42
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