Archivio Istituzionale della RicercaNew copolymers obtained by free radical copolymerization of methylmethacrylate (MMA) with a methacrylic monomer containing a perfluoropolyether structure (PFEUMA) were prepared. The products showed an excellent surface activity evidencing hydrophobic and lipophobic properties; the water contact angle of the films was always very high (>105°). Angle-dependent XPS analyses showed that the fluorinated monomer preferentially concentrates at the air surface and a fluorine gradient normal to the surface is present. A surface reorganisation was observed by changing the interface. The wettability increased when the films were dipped in water; after complete drying, the surface regained its hydrophobicity.
Surface properties of methacrylic copolymers containing a perfluoropolyether structure / Bongiovanni, Roberta Maria; Malucelli, Giulio; V., Lombardi; Priola, Aldo; V., Siracusa; C., Tonelli; A., Di Meo. - In: POLYMER. - ISSN 0032-3861. - 42:6(2001), pp. 2299-2305. [10.1016/S0032-3861(00)00557-7]
Surface properties of methacrylic copolymers containing a perfluoropolyether structure
BONGIOVANNI, Roberta Maria;MALUCELLI, Giulio;PRIOLA, ALDO;
2001
Abstract
New copolymers obtained by free radical copolymerization of methylmethacrylate (MMA) with a methacrylic monomer containing a perfluoropolyether structure (PFEUMA) were prepared. The products showed an excellent surface activity evidencing hydrophobic and lipophobic properties; the water contact angle of the films was always very high (>105°). Angle-dependent XPS analyses showed that the fluorinated monomer preferentially concentrates at the air surface and a fluorine gradient normal to the surface is present. A surface reorganisation was observed by changing the interface. The wettability increased when the films were dipped in water; after complete drying, the surface regained its hydrophobicity.
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https://hdl.handle.net/11583/1397310
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