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Ag/fluorine-containing polyacrylate latex was successfully synthesized via Pickering emulsion polymerization using Ag/poly(2-dimethylaminoethyl methacrylate-co-hexafluorobutyl acrylate) (Ag/P(DMAEMA-co-HFBA)) hybrid micelles as particle emulsifiers. The influences of introducing the Ag nanoparticles (NPs) component and the concentration of Ag/P(DMAEMA-co-HFBA) hybrid micelles on emulsion polymerization and finished cotton fabric properties were studied. The results showed that the Ag/fluorine-containing polyacrylate latex had a higher conversion, smaller particle size than the fluorine-containing polyacrylate latex using P(DMAEMA-co-HFBA) micelles as emulsifiers, indicating the positive effect of Ag NPs on emulsion polymerization. And thermogravimetric analysis (TGA) proved that Ag NPs improved the thermal stability of the latex film. Moreover, the surface of the cotton fabric finished by Ag/fluorine-containing polyacrylate latex showed more rough morphology, better hydrophobicity and excellent antibacterial activity owing to the synergistic effect of the cationic fluorine-containing polyacrylate compounds and Ag nanoparticles. Meanwhile, the presence of Ag NPs also improved the tensile strength of the finished cotton fabric, but reduced slightly the whiteness. When the concentration of Ag/P(DMAEMA-co-HFBA) hybrid micelle emulsifier was 8 mg/mL, the Ag/fluorine-containing polyacrylate latex particles presented regular raspberry-shaped with an average diameter of 120 nm, and the water/oil contact angles of finished cotton fabric attained 145° and 90°, respectively. In addition, the finished cotton fabric exhibited excellent antibacterial properties against both S. aureus and E. coli as the concentration of Ag/P(DMAEMA-co-HFBA) hybrid micelles was 12 mg/mL. The mechanism for the formation of Ag/fluorine-containing polyacrylate latex was proposed.

The pH-responsive amphiphilic block copolymer micelles based on poly (2-(dimethylamino) ethyl methacrylate) (PDMAEMA) as a flexible corona and poly(hexafluorobutyl acrylate) (PHFBA) as a co...

A new type of comolymer containing nanoparticles, Ag/poly(2-(dimethylamino) ethyl methacrylate-co-hexafluorobutyl acrylate) (Ag/P(DMAEMA-co-HFBA)) amphiphilic random copolymer hybrid micelles was synthesized and used as the high-efficiency particulate emulsifiers to stabilize Pickering emulsion. Firstly, the amphilphilic random P(DMAEMA-co-HFBA) is facilely synthesized by a one-pot radical polymerization of poly(2-(dimethylamino)ethyl methacrylate)(DMAEMA) and hexafluorobutyl acrylate(HFBA). Then, this copolymer self-assembles into spherical-like polymeric micelles, and the effect of the copolymer content on the size and morphology of P(DMAEMA-co-HFBA) micelles was determined by dynamic light scattering(DLS) and transmission electron microscopy(TEM). Then, the Ag/P(DMAEMA-co-HFBA) hybrid micelles were prepared by in suit using P(DMAEMA-co-HFBA) micelles as the nanoreactors. The synthesis mechanism of the Ag/P(DMAEMA-co-HFBA) hybrid micelles was investigated by Fourier transform infrared spectroscopy(FT-IR), X-Ray Diffraction(XRD) and TEM. The hybrid micelles showed surface activity and pH sensitivity for producing Pickering oil-in-water emulsions. The emulsification performance of Ag/P(DMAEMA-co-HFBA) hybrid micelles with different surface activity demonstrated that the Pickering emulsion with long-time stability could only be stabilized by Ag/P(DMAEMA70-co-HFBA30) hybrid micelles, indicating that the surface wettability of Ag/P(DMAEMA-co-HFBA) hybrid micelles plays a crucial role in determining the type and stability of the prepared Pickering emulsions. Additionally, the effect of pH value of the aqueous solution of Ag/P(DMAEMA-co-HFBA) hybrid micelles on the Pickering emulsion were investigated. The Ag/P(DMAEMA70-co-HFBA30) had an excellent emulsification performance at pH value 1.98 and the pH-induced phase inversion derived from obtained emulsions observed at pH higher than 5.15. These results demonstrated that Pickering emulsion could be generated using self-assembled hybrid micelles as the stabilizer, and the prepared Pickering emulsion has promising potential to be applied in the medical and coating industries.