New Flourine-Containing Monomer
By Dr. Koji Kato / Sales Manager, F-TECH INC., Japan
This article discusses the properties, manufacturing method and applications of a fluorinated monomer, 2,2,2-trifluoroethyl methacrylate or, more simply, Fluorester. Fluorine-containing monomers are used in a variety of coatings applications because of their heat and chemical resistance, weatherability, low refractive index, non-cohesiveness, water and oil repellency, and electric insulating properties
Figure 1 / Chemical Structures of Fluorester and Methyl Methacrylate
In the past, since fluorine-containing monomers were insoluble in solvents, high-temperature curing was required, and application was limited. To e this problem, various solvent-soluble fluoropolymers have recently been developed. For example, Kynar™-SL and ADS are normal-temperature drying type solvent-soluble polymers obtained by copolymerization with vinylidene fluoride (VDF) and tetrafluoroethylene (TFE) or hexafluoropropylene. Copolymers of fluoro olefin and hydrocarbon olefin, as represented by Lumiflon™, are multi-dimensional copolymers formed between fluorine-containing vinyl monomer, such as chlorotrifluoroethylene (CTFE), and hydrocarbon-type vinyl ethers. These are fluorine-containing monomers for paint that have excellent weatherability.
However, in paint films prepared with these monomers, it is hard to say
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