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; M. Washio

doi:10.1016/j.polymdegradstab.2005.12.003

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, M. Washio

^*Corresponding author for this work

School of Advanced Science and Engineering

Research output: Contribution to journal › Article › peer-review

12 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 (T_g). 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 language	English
Pages (from-to)	1694-1700
Number of pages	7
Journal	Polymer Degradation and Stability
Volume	91
Issue number	8
DOIs	https://doi.org/10.1016/j.polymdegradstab.2005.12.003
Publication status	Published - 2006 Aug

Keywords

Dechlorination
Dielectric constant
Dielectric heating
Microwave
PVC
Plastic wastes

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Polymers and Plastics
Materials Chemistry

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10.1016/j.polymdegradstab.2005.12.003

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

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.",

keywords = "Dechlorination, Dielectric constant, Dielectric heating, Microwave, PVC, Plastic wastes",

author = "M. Ito and K. Ushida and N. Nakao and N. Kikuchi and R. Nozaki and K. Asai and M. Washio",

note = "Funding Information: This work is partly supported by Grant for Environmental Research Projects from the Sumitomo Foundation, Grant-in-Aid for the Creation of Innovations through Business-Academic-Public Sector Cooperation No.14305 from Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan, and Waste Management Research Grant Nos. K1617 and K1733 from the Ministry of the Environment of Japan. ",

year = "2006",

month = aug,

doi = "10.1016/j.polymdegradstab.2005.12.003",

language = "English",

volume = "91",

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TY - JOUR

T1 - Dechlorination of poly(vinyl chloride) by microwave irradiation I

T2 - A simple examination using a commercial microwave oven

AU - Ito, M.

AU - Ushida, K.

AU - Nakao, N.

AU - Kikuchi, N.

AU - Nozaki, R.

AU - Asai, K.

AU - Washio, M.

N1 - Funding Information: This work is partly supported by Grant for Environmental Research Projects from the Sumitomo Foundation, Grant-in-Aid for the Creation of Innovations through Business-Academic-Public Sector Cooperation No.14305 from Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan, and Waste Management Research Grant Nos. K1617 and K1733 from the Ministry of the Environment of Japan.

PY - 2006/8

Y1 - 2006/8

N2 - 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.

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.

KW - Dechlorination

KW - Dielectric constant

KW - Dielectric heating

KW - Microwave

KW - PVC

KW - Plastic wastes

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JO - Polymer Degradation and Stability

JF - Polymer Degradation and Stability

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ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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