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US5399643A Method for preparation of tetrafluoroethylene/hexafluoropropylene copolymer 失效
制备四氟乙烯/六氟丙烯共聚物的方法

Method for preparation of tetrafluoroethylene/hexafluoropropylene
copolymer
摘要:
A method for preparing a tetrafluoroethylene/hexafluoropropylene copolymer by polymerizing tetrafluoroethylene and hexafluoropropylene in an aqueous medium using a di(fluoroacyl) peroxide as a polymerization initiator characterized in that a fluoroalkylcarboxylic acid is added gives a stable molecular weight of the tetrafluoroethylene/hexafluoropropylene copolymer and an increased utilization efficiency of the polymerization initiator.
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