Fluoroelastomers

摘要

Fluoroelastomers, curable by peroxidic route, obtainable by polymerizing the following monomers: a) C2-C8 hydrogenated fluoroolefins; b) fluorovinylethers of general formula: CFX=CXOCF2OR c) bis-olefins having general formula: R<I> 1R<I> 2 C=CR<I> 3-Z-CR<I> 4=CR<I> 5R<I> 6 and optionally: d) one or more fluorinated olefinic comonomers selected from perfluoroalkylvinylethers (PAVE) CF2=CFOR<2>f, perfluoro-oxyalkylvinylethers CF2=CFOX<a>, e) C2-C8 perfluorolefins; f) one or more C2-C8 non fluorinated olefinic comonomers said fluoroelastomers comprising iodine and/or bromine atoms in the chain and/or in end position.