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    A Light-Driven Process to Oxidize Plastic Surfaces for Industry Safely

    Article obtained from Photonics RSS Feed.

    Researchers at Osaka University have developed a light-driven process for oxidizing polypropylene (PP), a widely used plastic, without creating waste.

    The process uses a reactive chlorine dioxide radical to make the plastic reactive. PP is normally an unreactive material; however, the researchers made a highly reactive radical by mixing sodium chlorite and hydrochloric acid. The radical was then photochemically activated using an LED lamp as the light source.

    Surface oxygenation of side-chain methyl groups in polypropylene under photoirradiation with chlorine dioxide. Courtesy of Osaka University.
    As a result of the process, while the bulk polymer remained intact, its surface showed a multitude of carboxylic acid groups that…

    Jun, 17 2019 |

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