High resolution XPS investigation of photocured films containing perfluoropolyether acrylates

Bongiovanni, Roberta Maria; Beamson, G.; Mamo, Antonino; Priola, Aldo; Recca, A.; Tonelli, Claudio

doi:10.1016/s0032-3861(99)00203-7

Cited by 55 publications

(30 citation statements)

References 8 publications

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“…It can be ascribed to the fact that fluorine atoms with extremely low surface free energy have self-organizing property, which causes the fluorinated moieties to be preferentially oriented to the film surface during the film formation [34]. The XPS results obtained for the hybrid latex film are fully consistent with those reported in the literature [35][36][37]. It is well known that fluorine-containing polymers always have hydrophobicity and low surface-free energy.…”

Section: Xps Analysissupporting

confidence: 85%

Synthesis and characterization of emulsifier-free trilayer core–shell polysilsesquioxane/polyacrylate/poly(fluorinated acrylate) hybrid latex particles

et al. 2012

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The trilayer core-shell polysilsesquioxane/polyacrylate/poly(fluorinated acrylate) (PSQ/PA/PFA) hybrid latex particles are successfully prepared, using functional PSQ latex particles with reactive methacryloxypropyl groups synthesized by the hydrolysis and polycondensation of (3-methacryloxypropyl)trimethoxysilane in the presence of a reactive emulsifier as seeds. Transmission electron microscopy (TEM), scanning electron microscopy (SEM) and dynamic light scattering (DLS) confirm that the resultant hybrid latex particles have evident trilayer core-shell structure and a narrow size distribution. The Fourier transform infrared (FTIR) spectra show that fluorinated acrylate monomers are effectively involved in the emulsion copolymerization and formed the fluorine-containing hybrid latex particles. XPS analysis of the obtained hybrid latex film reveals that the intensity of fluorine signal in the film-air interface is higher than that in the film-glass interface. In addition, compared with pure polyacrylate latex film, the obtained fluorine-containing hybrid film shows higher hydrophobicity and thermal stability, and lower surface free energy.

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Section: Xps Analysissupporting

confidence: 85%

Synthesis and characterization of emulsifier-free trilayer core–shell polysilsesquioxane/polyacrylate/poly(fluorinated acrylate) hybrid latex particles

et al. 2012

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“…When the thickness of the investigated layer is minimal (take-off angle ¼ 10 ) [30], the fluorine concentration is even higher than the value calculated for the m-PFEUMA itself and corresponds to the fluorinated chain alone. Therefore, the surface of the copolymeric network can be considered as mainly composed of the fluorinated monomer.…”

Section: Radical Copolymerisation Systemsmentioning

confidence: 71%

“…It is clear that the films gain a high hydrophobicity only on their air side, while on the glass side, the measured value (668) is independent of the type of formulation. Moreover, the asymptotic value of the curve (1168) is typical of a fully fluorinated surface [29] and is reached at a very low concentration of the fluorinated monomer (0.7% w/w) [30].…”

Section: Radical Copolymerisation Systemsmentioning

confidence: 99%

Fluorinated networks through photopolymerisation processes: synthesis, characterisation and properties

Bongiovanni¹,

Malucelli²,

Sangermano³

et al. 2004

Journal of Fluorine Chemistry

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“…In comparison with thermal curing, photocuring is a faster and less energy-consuming process and has been recently employed to obtain low surface energy films by Bongiovanni et al [8][9][10][11][12][13]. In most cases, they used a special fluorinated oligomer, perfluoropolyether, which is difficult to synthesize and mainly located in the middle of polymer main chains.…”

Section: Introductionmentioning

confidence: 99%

Low surface energy polymeric films from partially fluorinated photocurable solventless liquid oligoesters

et al. 2001

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We have recently shown that low surface energy polymeric films can be readily obtained from partially fluorinated hydroxyl-end-capped solventless liquid oligoesters by thermal curing [1]. Photocurable liquid oligoesters can be prepared by further substituting the remaining hydroxyl end groups with acrylic double bonds. A conventional photoinitiator containing 2-hydroxy-2-methylpropiophenone was used to cure the liquid oligoesters. As the fluorine content increases from 0 to about 1.57 wt %, the surface energy decreases by about 14 mN/m. The fluorine level in the outer few nanometers is significantly greater than that in the bulk, as revealed by XPS studies. The driving force for the surface segregation of fluorinated species comes from the large difference in surface energy between the oligoesters and their fluorinated counterparts.

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High resolution XPS investigation of photocured films containing perfluoropolyether acrylates

Cited by 55 publications

References 8 publications

Synthesis and characterization of emulsifier-free trilayer core–shell polysilsesquioxane/polyacrylate/poly(fluorinated acrylate) hybrid latex particles

Synthesis and characterization of emulsifier-free trilayer core–shell polysilsesquioxane/polyacrylate/poly(fluorinated acrylate) hybrid latex particles

Fluorinated networks through photopolymerisation processes: synthesis, characterisation and properties

Low surface energy polymeric films from partially fluorinated photocurable solventless liquid oligoesters

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