Study on preparing novel cross-linked and fluorinated acrylate latex
Polymer Bulletin(2024)
Abstract
Novel cross-linked fluorinated acrylate latex was successfully synthesized via the semi-continuous seeded emulsion polymerization, in which methyl methacrylate (MMA) and butyl acrylate (BA) were used as the main monomers, and dodecafluoroheptyl methacrylate (DFMA) and N–N methylene bisacrylamide (MBA) were used as the fluorine monomer and the cross-linked monomer, respectively. Potassium persulfate (KPS) and mixed surfactants of sodium lauryl sulfate and alkyl alcohol polyether (EFS-470) were used as the initiator and emulsifier, respectively. The structure of resultant latex film was characterized by Fourier transform infrared spectroscopy (FTIR). The latex films were tested by thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), contact angle (CA), cross-linked degree and X-ray diffractometer (XRD). The particle size and its distribution of the latex were measured by the nanoparticle size analyzer and transmission electron microscope (TEM). The factors that have an influence on the properties of the latex and the film are investigated in detail. The stability of the resultant latex was good. The average particles of the latex and its distribution were small and uniform, respectively. In comparison with the conventional latex film, the thermal stability and hydrophobicity of the novel latex film were improved obviously.
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Key words
Novel acrylate latex,cross-linkage,emulsion polymerization,Fluorinated monomer
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