| 摘要 |
Disclosed is a peroxide-crosslinkable fluoroelastomer obtained by copolymerization of 0.1 to 20 mol% of a mixture of fluoroolefin iodides represented by the general formulae: C n F 2n+1 CF 2 CH=CF(CF 2 CF 2 ) m I [Ia] and C n F 2n+1 CF=CHCF 2 (CF 2 CF 2 ) m I [Ib], wherein n is an integer of 0 to 5, and m is an integer of 1 to 3. The peroxide-crosslinkable fluoroelastomer is copolymerized with a monomer having a side chain containing a peroxide-crosslinkable halogen atom, and has excellent vulcanizate physical properties and improved compression set characteristics when subjected to peroxide crosslinking.
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