Surface immobilisation of fluorinated polystyrene‐acrylate latex nanoparticles with core–shell structure by crosslinking

Abstract

Fluorinated polystyrene-acrylate (PSA) latex nanoparticles with core-shell structure were synthesised by two-stage seeded emulsion polymerisation method in the presence of reactive emulsifier DNS-86. Diallyl phthalate (DAP) and Vinyltriethoxysilicone (VTES) were used as crosslinking agent to immobilise the fluorinated copolymer on the surface of the latex film. Fourier transform infrared spectroscopy (FTIR) spectra show that fluorine and siloxane monomers were effectively involved in the emulsion copolymerisation. Transmission electron microscope (TEM) observation shows that the prepared emulsion particles had a core-shell structure with fluorinated copolymer in the shell. X-ray photoelectron spectroscopy (XPS) analysis reveals that fluorine atom has the tendency of migrating to the film-air interface and the incorporation of VTES helps the migration of fluorine atom towards the film-air interface. Water contact angle (WCA) test proved that DAP and VTES as crosslinking agent can immobilise the fluorinated copolymer on the surface of the latex films.

Sustainable washing‐free printing of disperse dyes on polyester fabrics enabled by crosslinked fluorosilicone modified polyacrylate binders

“…The consequent low concentration of silicon at the film‐PET interfaces generated a high affinity of binder film for the diffusion of disperse dye molecules 45‐49 . An effective way to solve this problem is the usage of crosslinkable binders that can significantly restrain the migration of polymer chains 50‐54 …”