The oxygen permeability of composite materials, consisting of a LDPE substrate coated with a thin layer (0.7-1 μm) of new hybrid org./inorg. materials based on SiO2 and PE-PEG block copolymers, has been characterized at 35° and 50°. The effect of adding a second org. component capable to form hydrogen bonds, namely either poly(4-hydroxy styrene) (PHS) or malic acid, has been studied. While the addn. of PHS leads to a further significant decrease (50-70%) of the oxygen permeability both at 35° and 50°, on the contrary, the addn. of malic acid leads to poorer barrier properties. A slight decrease of the permeability was obtained after plasma treatment of the LDPE surface.

Oxygen permeability of novel organic-inorganic coatings: II Modification of the organic component with a hydrogen-bond forming polymer / Toselli, M; Pilati, Francesco; Marini, M; Doghieri, F; DE ANGELIS M., G; Minelli, M.. - In: EUROPEAN POLYMER JOURNAL. - ISSN 0014-3057. - STAMPA. - 44:(2008), pp. 3256-3263.

Oxygen permeability of novel organic-inorganic coatings: II Modification of the organic component with a hydrogen-bond forming polymer

PILATI, Francesco;
2008

Abstract

The oxygen permeability of composite materials, consisting of a LDPE substrate coated with a thin layer (0.7-1 μm) of new hybrid org./inorg. materials based on SiO2 and PE-PEG block copolymers, has been characterized at 35° and 50°. The effect of adding a second org. component capable to form hydrogen bonds, namely either poly(4-hydroxy styrene) (PHS) or malic acid, has been studied. While the addn. of PHS leads to a further significant decrease (50-70%) of the oxygen permeability both at 35° and 50°, on the contrary, the addn. of malic acid leads to poorer barrier properties. A slight decrease of the permeability was obtained after plasma treatment of the LDPE surface.
44
3256
3263
Oxygen permeability of novel organic-inorganic coatings: II Modification of the organic component with a hydrogen-bond forming polymer / Toselli, M; Pilati, Francesco; Marini, M; Doghieri, F; DE ANGELIS M., G; Minelli, M.. - In: EUROPEAN POLYMER JOURNAL. - ISSN 0014-3057. - STAMPA. - 44:(2008), pp. 3256-3263.
Toselli, M; Pilati, Francesco; Marini, M; Doghieri, F; DE ANGELIS M., G; Minelli, M.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11380/610437
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