Preparation of a fluorocarbon polymerizable surfactant and its application in emulsion polymerization of fluorine-containing acrylate

Abstract

A novel polymerizable fluorocarbon surfactant, perfluoro (4-methyl-3, 6-dioxaoct-7-ene) sodium sulfonate (PSVNa), was synthesized and characterized. The fluorocarbon surfactant PSVNa and its mixture PSVNa/SDS were used as emulsifiers during the emulsion polymerization of DFHMA/MMA. The investigation of polymerization kinetics, particle size, and stability of the emulsions revealed that PSVNa has excellent emulsifying properties. The NMR spectrum of the copolymer and the detection of residual PSVNa show that more than 95% of the fluorocarbon surfactants have been linked to the polymer chains by radical polymerization, which will greatly reduce the environmental pollution caused by fluorinated surfactants.