Nanoheterogeneous networks by photopolymerization of perfluoropolyethers and acrylic co-monomers

Authors


Correspondence to: Roberta Bongiovanni, Department of Applied Science and Technology, Politecnico di Torino, corso Duca degli Abruzzi 24, Torino, Italy. E-mail: roberta.bongiovanni@polito.it

Abstract

Perfluoropolyethers (PFPEs) functionalized with acrylic and methacrylic end groups can be mixed with typical hydrogenated acrylic monomers such as hexanediol diacrylate, tripropyleneglycol diacrylate and trimethylolpropane triacrylate. Mixtures are transparent up to 1:3 weight ratios and can then be photopolymerized. Crosslinked networks are obtained, showing a complex multiphasic nanostructure: submicrometric hydrogenated nanodomains are chemically linked to the fluorinated matrix. Because of this morphology, these networks show peculiar bulk and surface properties: the PFPE matrix ensures low surface energy and low refractive index, while the hydrogenated phase enhances the mechanical properties and polarity of the systems. The networks are then suitable for advanced applications in coatings, microelectronics and optical devices. © 2013 Society of Chemical Industry

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