Process for polymerizing fluoromonomers using combination of fluorinated and non-fluorinated surfactants

Disclosed is a method of polymerizing a fluoromonomer in an aqueous medium to form a fluoropolymer, the method comprising the steps of: (a) forming an aqueous solution in a polymerization reactor of a first surfactant combination comprising at least one fluorinated surfactant and at least one non-fl...

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Hauptverfasser: CHAUHAN RAJAT, KUMAR GOURAV, SONI NIRMAL, RAO PREETI S, DUTTA ARUNAVA, PATEL ANJANA M, BHATTACHARYYA BIBHU SUBHASH
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:Disclosed is a method of polymerizing a fluoromonomer in an aqueous medium to form a fluoropolymer, the method comprising the steps of: (a) forming an aqueous solution in a polymerization reactor of a first surfactant combination comprising at least one fluorinated surfactant and at least one non-fluorinated surfactant; (b) pressurizing the polymerization reactor with the fluorine-containing monomer; (c) initiating a polymerization reaction of the fluorine-containing monomer to form the fluorine-containing polymer; (d) growth of the polymerization reaction, wherein a second surfactant of at least one fluorinated surfactant and at least one non-fluorinated surfactant is metered or dosed in combination into the polymerization reactor; and (e) terminating the polymerization reaction after consuming a desired amount of the fluorine-containing monomer. 本发明公开了在水性介质中聚合含氟单体以形成含氟聚合物的方法,所述方法包括以下步骤:(a)在聚合反应器中形成包含至少一种氟化表面活性剂和至少一种非氟化表面活性剂的第一表面活性剂组合的水溶液;(b)用所述含氟单体将所述聚合反应器加压;(c)引发所述含氟单体的聚合反应以形成所述含氟聚合物;(d)所述聚合反应的增长,其中将至少一种氟化