Abstract
AbstractPhotopolymerization processes are often used in industrial applications because of their solvent‐free formulations and various advantages over conventional thermal processes. Fluorinated monomers and oligomers yield coatings of great interest because of the peculiar characteristics of fluorine atoms: these coatings show hydrophobicity, chemical stability, weathering resistance, etc. Novel UV‐curable fluorinated epoxy acrylate oligomers were synthesized from 1H,1H‐perfluorohexan‐1‐ol, 1,6‐hexamethylene diisocyanate (HDI) and epoxy acrylate (EA). The HDI plays the role of a spacer group in the side chain between the EA backbone chain and the fluorinated segment. This new spacer containing a urethane moiety with long alkyl groups can exhibit a self‐organization effect through the formation of strong hydrogen bonding. This resulted in a stiffening of the whole HDI urethane–perfluoalkyl chain to form nanostructure surface segregation. The designed fluorinated EA with fluoroalkyl (C5F11) units in the side chain exhibited a contact angle of about 151°, which is in the superhydrophobic range. Copyright © 2010 Society of Chemical Industry
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