Polymerization of allyl compound bearing perfluoroisopropenyl group

The investigation on the radical polymerization reactivity of 4-pentenoyloxypentafluoropropene [CH2CH-CH2CH2-COOC(CF3)CF2] (PPF) was carried out since cyclopolymerization of perfluoroisopropenyl vinylacetate [CH2CH-CH2-COOC(CF3)CF2] takes place under radical polymerization condition to produce the polymer possessing 5-membered-ring structure in main chain. The soluble polymer of PPF yielded by allyl polymerization bearing 1.8 × 104(DP¯=78) as the highest molecular weight initiated with di-tert-butyl peroxide was produced instead of cyclized polymer bearing 6-membered-ring structure. The polymer possesses perfluoroisopropenyl groups in side chains.