| 摘要 |
NEW MATERIAL:fluorine-containing aromatic compound having alkenyl groups and represented by formula I (R<1> and R<2> are allyl or propenyl; R<3> and R<4> are 2-15C fluoroalkyl or fluoroalkenyl; X is O, S, sulfonyl, carbonyl, lower alkylene, lower fluoroalkylene or phenylene; p is 0 or 1). EXAMPLE:2,2-Bis(3-allyl-4-(3,3,3,2,1,1-hexafluoropropyloxyphenyl) hexafluoropropane. USE:Useful as an additive, etc., for a heat-resistant polybis maleimide, etc. PREPARATION:A diphenol compound of formula II is reacted with a fluoroolefin in the presence of a base at 0-150 deg.C to provide the compound of formula I. The fluoroalefin is used in a range of one equivalent to 1.5 equivalent based on the compound of formula II. |
