申请人:E. I. Du Pont de Nemours and Company
公开号:US04126631A1
公开(公告)日:1978-11-21
Novel .beta.-carbonylpolyfluoroalkyl sulfonate esters, e.g., ##STR1## are prepared by reacting SO.sub.3 with the corresponding acyclic fluorovinyl esters, e.g., CF.sub.3 CF.dbd.CFOCH.sub.3, at a temperature of about -40.degree. to 110.degree. C. These esters are useful as very active cationic initiators, e.g., for the polymerization of tetrahydrofuran.
小说.beta.-羰基多氟烷基磺酸酯,例如,##STR1##是通过在约-40℃至110℃的温度下将SO.sub.3与相应的无环氟乙烯酯反应制备的,例如,CF.sub.3 CF.dbd.CFOCH.sub.3。这些酯类化合物可用作非常活性阳离子引发剂,例如,用于四氢呋喃的聚合反应。