Photosensitized Polystyrene Film for Dye TX under Different Radiation Sources

Josy Antoveli Osajima; Carla Cristina Schmitt Cavalheiro; Miguel Guillermo Neumann

doi:10.4028/www.scientific.net/MSF.869.820

Paper Titles

Ion Exchange in Sodium Titanate Nanoribbons and its Application in Dye Photodegradation of Remazol Blue
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Influence of the Addition of Inorganic Salt in Obtaining Hybrid Membranes
p.803

Electrochemical Behavior of Electroactive PVS/PANI Films Containing Chemically Modified Cellulose
p.809

Development of Polymer Membranes Modified with a Porogenic Agent
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Photosensitized Polystyrene Film for Dye TX under Different Radiation Sources
p.820

Influence of Content and Treatment of Clay in the Morphology of PES Membranes
p.824

Mechanical Analysis of Biodegradable Films from Native and Chemically Modified Potato Starches
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Morphological Analysis of Membranes of PES/Commercial Clay
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Nanostructured and Electroactive Hybrid Films Containing Microcrystalline Cellulose Modified with the Phosphate Group: Synthesis and Characterization
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HomeMaterials Science ForumMaterials Science Forum Vol. 869Photosensitized Polystyrene Film for Dye TX under...

Photosensitized Polystyrene Film for Dye TX under Different Radiation Sources

Abstract:

The polystyrene (PS) has a variety of applications. Many mechanisms have been proposed for the degradation of the polymer, but a consistent mechanism does not exist yet in the literature due to the complexity of the kinetics and formation of photoproducts that depend on various conditions photodegradation. The aim of this study was to investigate the kinetic behavior of the photodegradation of PS films photosensitized by thioxanthone (TX) under UV, Vis and xenon radiation. Changes in chemical structure caused by photo-oxidation in the films were verified by FT-IR. The photodegradation of polystyrene films sensitized by thioxanthone showed greater efficiency in the formation of carbonyl group under Vis radiation and xenon when compared to pure PS. However, in the ultraviolet films system PS and PS / TX exhibited similar kinetic behavior.