发明申请
US20070015865A1 AQUEOUS EMULSION POLYMERIZATION OF FLUORINATED MONOMERS USING A PERFLUOROPOLYETHER SURFACTANT 审中-公开
使用全氟聚醚表面活性剂的氟化单体的水性乳液聚合

AQUEOUS EMULSION POLYMERIZATION OF FLUORINATED MONOMERS USING A PERFLUOROPOLYETHER SURFACTANT
摘要:
The invention relates to an aqueous emulsion polymerization of fluorinated monomers using perfluoropolyethers of the following formula (I) or (II). In particular, the perfluoropolyether surfactants correspond to formula (I) or (II) CF3—(OCF2)m—O—CF2—X  (I) wherein m has a value of 1 to 6 and X represents a carboxylic acid group or salt thereof, CF3—O—(CF2)3—(OCF(CF3)—CF2)z—O-L-Y  (II) wherein z has a value of 0, 1, 2 or 3, L represents a divalent linking group selected from —CF(CF3)—, —CF2— and —CF2CF2— and Y represents a carboxylic acid group or salt thereof. The invention further relates to an aqueous dispersion of a fluoropolymer having the aforementioned perfluoropolyether surfactant(s).
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