Surface Modification and Characterization of Photodegradable Polystyrene-TiO2 Nanocomposites

Achanai Buasri; Pornpimon Loakhonka; Tanaporn Benjapolchai; Nitchanan Chusripet; Vorrada Loryuenyong

doi:10.4028/www.scientific.net/AMM.372.128

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 372Surface Modification and Characterization of...

Surface Modification and Characterization of Photodegradable Polystyrene-TiO₂ Nanocomposites

Abstract:

In this study, polystyrene (PS) nanocomposites with TiO₂ and surface-modified TiO₂ nanoparticles were prepared by compression molding method. TiO₂ nanoparticles were modified by 3-(methacryloxy) propyl trimethoxysilane (MPS). The resulting nanocomposite thick films were compared with pure polystyrene. It was found that MPS-modified TiO₂ nanoparticles were better dispersed in PS matrix due to their hydrophobic characteristics. The addition of small amount of TiO₂ nanoparticles could greatly decrease the optical bandgap of PS from 4.0 eV in pure PS to less than 3.0 eV in PS-TiO₂ nanocomposite. The effects of surface modification and UVC irradiation on the physical properties and the degradation of nanocomposites were investigated.

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Applied Mechanics and Materials (Volume 372)

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128-131

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.372.128

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August 2013

Authors:

Achanai Buasri, Pornpimon Loakhonka, Tanaporn Benjapolchai, Nitchanan Chusripet, Vorrada Loryuenyong

Keywords:

Hydrophobicity, Photodegradation, Polystyrene, Surface Modification, TiO₂

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