Perfluoropolyether structures as surface modifying agents of UV-curable systems

Bongiovanni, Roberta Maria; Malucelli, Giulio; Pollicino, Antonino; Tonelli, Claudio; Simeone, Giovanni; Priola, Aldo

doi:10.1002/(sici)1521-3935(19980601)199:6<1099::aid-macp1099>3.3.co;2-h

Cited by 14 publications

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“…The surface tension of the coatings is very low on the air side (13–15 mN m −1 ) and similar to the liquid surface tension of the corresponding oligomers (when measurement was possible). The values are higher on the glass side (25–27 mN m −1 ), giving an indication of the heterogeneity of these networks where the fluorinated segments tend to concentrate at the surface in contact with air 21, 22, 24. The wettability of all coatings does not change over time, nor with changing temperature.…”

Section: Resultsmentioning

confidence: 95%

“…Scratch resistance is improved compared to the pure PFPE oligomer, while the refractive index, although increased, is still low and useful for optical applications. Surface properties of the film (side exposed to air) are the same as those of the pure 5105X product, due to the surface segregation of the fluorinated monomers which is known to take place even at very low loading (around 1% w/w) giving significant reduction of the surface free energy of photocured films 24–26…”

Section: Resultsmentioning

confidence: 99%

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Perfluoropolyether polymers by UV curing: design, synthesis and characterization

Bongiovanni

Medici

Zompatori

et al. 2011

Polymer International

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Perfluoropolyether (PFPE) structures can be functionalized with acrylic groups using appropriate hydrogenated acrylic monomers: the macromers obtained are highly reactive under UV irradiation, and fluorinated polymers can be obtained. In the first part of this work is described the synthesis of new PFPE (meth)acrylic oligomers by extending OH-terminated fluorinated chains with urethane groups and reactive acrylic functions. The photopolymerization reaction of each product is then reported followed by the characterisation of the main thermal, mechanical and surface properties of UV-cured coatings. The polymers have good thermal resistance and fair mechanical and chemical resistance. More interestingly they show very low refractive index and low surface tension. For these latter properties the products can be advantageously used in highly demanding applications such as photonic devices and nano-patterning.

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Section: Resultsmentioning

confidence: 95%

Section: Resultsmentioning

confidence: 99%

Perfluoropolyether polymers by UV curing: design, synthesis and characterization

Bongiovanni

Medici

Zompatori

et al. 2011

Polymer International

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“…Similar behavior was observed in a previous work reporting the photopolymerization of telechelic diacrylate with fluoroacrylates. 18 The wettability of the films with hexadecane was also measured: the data showed an increase of the oil repellency of the products ( Table 2).…”

Section: Surface Propertiesmentioning

confidence: 99%

Fluorinated vinyl ethers as new surface agents in the photocationic polymerization of vinyl ether resins

Bongiovanni¹,

Sangermano²,

Malucelli³

et al. 2003

J. Polym. Sci. A Polym. Chem.

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The syntheses of fluorinated vinyl ethers (H2CCHOCH2CH2CnF2n+1, n = 6 or 8) and their copolymerizations with bis(4‐vinyloxybutyl) isophthalate are reported. The fluorinated monomers were prepared by the transetherification of ethyl vinyl ether and fluorinated alcohols in a 75% yield. Added in low concentrations (0.1–3.0 wt %) to formulations containing bis(4‐vinyloxybutyl) isophthalate, they did not affect the kinetics of the cationic photopolymerization. The cured films were transparent and showed interesting properties in terms of wettability, hardness, cross‐cut adhesion, and chemical inertness. The fluoromonomers increased the hydrophobicity of the film surface, whereas the adhesion on various substrates such as glass and wood was unchanged. An increase in the methyl ethyl ketone resistance was also observed. © 2003 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 41: 2890–2897, 2003

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“…Reactive end groups have also been introduced into the PFPE chain, giving products that can be homopolymerized and copolymerized with hydrogenated monomers . PFPEs containing acrylic or methacrylic double bonds are especially interesting for their high reactivity in radical polymerization . In recent work the synthesis of a new series of acrylic and methacrylic products has been described .…”

Section: Introductionmentioning

confidence: 99%

Nanoheterogeneous networks by photopolymerization of perfluoropolyethers and acrylic co-monomers

et al. 2013

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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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Perfluoropolyether structures as surface modifying agents of UV-curable systems

Cited by 14 publications

References 0 publications

Perfluoropolyether polymers by UV curing: design, synthesis and characterization

Perfluoropolyether polymers by UV curing: design, synthesis and characterization

Fluorinated vinyl ethers as new surface agents in the photocationic polymerization of vinyl ether resins

Nanoheterogeneous networks by photopolymerization of perfluoropolyethers and acrylic co-monomers

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