Dechlorination of poly(vinyl chloride) by microwave irradiation I: A simple examination using a commercial microwave oven

M. Ito, K. Ushida, N. Nakao, N. Kikuchi, R. Nozaki, K. Asai, Masakazu Washio

    Research output: Contribution to journalArticle

    9 Citations (Scopus)

    Abstract

    Poly(vinyl chloride) (PVC) was decomposed by microwave (MW) irradiation (2.45 GHz) using a commercial MW oven. The efficiency of dielectric absorption was evaluated quantitatively from the rate of temperature increase on MW irradiation. The efficiency of dielectric heating increased at temperatures above the glass transition temperature (Tg). The decomposition on MW irradiation, monitored using the weight, depended on the initial (preheating) temperature of the sample before irradiation. The degradation time profile with various initial temperatures was shifted along the time axis and was successfully superimposed on a single curve. A pure PVC film was subjected to heating at a constant temperature from 230 °C to 310 °C, and the rate of weight decrease on heating was measured. The apparent activation energy was 84.4 kJ/mol for a single monomer unit.

    Original languageEnglish
    Pages (from-to)1694-1700
    Number of pages7
    JournalPolymer Degradation and Stability
    Volume91
    Issue number8
    DOIs
    Publication statusPublished - 2006 Aug

    Fingerprint

    Vinyl Chloride
    Microwave ovens
    Dechlorination
    Microwave irradiation
    ovens
    examination
    chlorides
    microwaves
    irradiation
    heating
    Polyvinyl Chloride
    Polyvinyl chlorides
    Temperature
    Dielectric heating
    temperature
    Heating
    Preheating
    glass transition temperature
    Activation energy
    monomers

    Keywords

    • Dechlorination
    • Dielectric constant
    • Dielectric heating
    • Microwave
    • Plastic wastes
    • PVC

    ASJC Scopus subject areas

    • Organic Chemistry
    • Polymers and Plastics

    Cite this

    Dechlorination of poly(vinyl chloride) by microwave irradiation I : A simple examination using a commercial microwave oven. / Ito, M.; Ushida, K.; Nakao, N.; Kikuchi, N.; Nozaki, R.; Asai, K.; Washio, Masakazu.

    In: Polymer Degradation and Stability, Vol. 91, No. 8, 08.2006, p. 1694-1700.

    Research output: Contribution to journalArticle

    Ito, M. ; Ushida, K. ; Nakao, N. ; Kikuchi, N. ; Nozaki, R. ; Asai, K. ; Washio, Masakazu. / Dechlorination of poly(vinyl chloride) by microwave irradiation I : A simple examination using a commercial microwave oven. In: Polymer Degradation and Stability. 2006 ; Vol. 91, No. 8. pp. 1694-1700.
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    abstract = "Poly(vinyl chloride) (PVC) was decomposed by microwave (MW) irradiation (2.45 GHz) using a commercial MW oven. The efficiency of dielectric absorption was evaluated quantitatively from the rate of temperature increase on MW irradiation. The efficiency of dielectric heating increased at temperatures above the glass transition temperature (Tg). The decomposition on MW irradiation, monitored using the weight, depended on the initial (preheating) temperature of the sample before irradiation. The degradation time profile with various initial temperatures was shifted along the time axis and was successfully superimposed on a single curve. A pure PVC film was subjected to heating at a constant temperature from 230 °C to 310 °C, and the rate of weight decrease on heating was measured. The apparent activation energy was 84.4 kJ/mol for a single monomer unit.",
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    AU - Ushida, K.

    AU - Nakao, N.

    AU - Kikuchi, N.

    AU - Nozaki, R.

    AU - Asai, K.

    AU - Washio, Masakazu

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    AB - Poly(vinyl chloride) (PVC) was decomposed by microwave (MW) irradiation (2.45 GHz) using a commercial MW oven. The efficiency of dielectric absorption was evaluated quantitatively from the rate of temperature increase on MW irradiation. The efficiency of dielectric heating increased at temperatures above the glass transition temperature (Tg). The decomposition on MW irradiation, monitored using the weight, depended on the initial (preheating) temperature of the sample before irradiation. The degradation time profile with various initial temperatures was shifted along the time axis and was successfully superimposed on a single curve. A pure PVC film was subjected to heating at a constant temperature from 230 °C to 310 °C, and the rate of weight decrease on heating was measured. The apparent activation energy was 84.4 kJ/mol for a single monomer unit.

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    KW - Plastic wastes

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