Dispersion of silica nanoparticles bearing perfluorohexyl units into fluorinated copolymers

Abstract

This study aims at determining the compatibility behavior of nanoparticles surface with fluorinated matrices to obtain a homogenous dispersion and better composites properties. First, modified silica nanoparticles by C 6 F 13 I and C 6 F 13 -C 2 H 4 -SH led to various fluorinated silica of different massic concentrations and grafting rates. The dispersion of these nanoparticles (in 5 wt %) into molten poly(VDF-co-HFP) and poly(TFE-co-HFP) matrices were studied as well as the hydrophobic, mechanical, and thermal properties of both fluorinated copolymers and resulting composites. In both series, the storage modulus of nanocomposites increased while the melting

Nano‐dispersion of fluorinated phosphonate‐modified nanodiamond in crystalline fluoropolymer matrix to achieve a transparent polymer/nanofiller hybrid

“…This type of phase-separated structure is utilized for surface patterning [5] and forms morphological features with dimensions on the micrometer [6] to nanometer [7] scale. On the other hand, fluorocarbon-based compounds with water-and oil-repellent properties [8] are difficult to mix with other components, which makes forming a composite material with these compounds difficult as well [9]. Whenc compared with the wide range of studies involving general hydrocarbon-based polymers, the study of fluorine-based polymers has been limited, although this field has a long history.…”

Transparent superhydrophobic coatings from amphiphilic-fluorinated block copolymers synthesized by aqueous polymerization-induced self-assembly

“…Block copolymers, especially those that are composed of at least one hydrophobic block (such as a fluorinated one), emerged as important candidates to design superhydrophobic coatings. [25][26][27][28][29] Their self-assembly into various nanostructures which may result in a controlled roughness, would be an attractive way to easily functionalize surfaces. 30,31 However, most of the processes working with fluorinated block copolymers are using organic solvents for the formation of the films (and most often for the preparation of the copolymers as well), which again is not desirable for large-scale applications.…”