Synthesis of fluorinated polyacrylate surfactant‐free core–shell latex by RAFT‐mediated polymerization‐induced self‐assembly: Effects of the concentration of hexafluorobutyl acrylate

Abstract

AbstractA simple method for preparing fluorinated polyacrylate surfactant‐free latex was developed by RAFT‐mediated polymerization‐induced self‐assembly, in which the fluorinated polyacrylate copolymers formed a core–shell spherical morphology. The influence of the concentration of hexafluorobutyl acrylate on the properties of latex was systematically studied. The results showed that the average particle size increased, and the monomer conversion gradually increased with increasing the length of the second segment (PHFBA). And the monomer conversion progressively decreased, and average particle size gradually increased as the concentration of monomer (HFBA) increased from 2 wt% to 6 wt%. Furthermore, the thermal stability and the water contact angle of the film increased as the concentration of HFBA increased, and the water contact angle of film can be up to 127.3° when the concentration of HFBA was 6 wt%. XPS also showed that the fluorine‐containing groups well concentrated at the film–air interfaces during the annealing process.