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Liquid-solid system

F An example of a possible application of heterogeneous photocatalysis is the photodegradation (polycrystalline TiO2 as the photocatalyst) of divinylsulfone (DVS) used as a crosslinker for the preparation of a biodegradable cellulose based superabsorbent hydrogel.2,3 F This material was obtained by chemical crosslinking of cellulose polyelectrolyte derivatives, Carboxymethylcellulose (CMC) and Hydroxyethylcellulose (HEC) using DVS as the crosslinker which covalently bounds different polymer molecules in a 3D hydrophilic network. F Superabsorbent hydrogels are used mainly for personal care products, biosensing, etc.

  • 2.

    M.A. Del Nobile, F. Esposito, G. Mensitieri, A. Sannino, Patent WO 98/58686.

  • 3.

    G. Marcì, G. Mele, L. Palmisano, P. Pulito, A. Sannino, submitted.

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