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Dehydrochlorination behavior of flexible PVC pellets in NaOH solutions at elevated temperature by Shun-Myung Shin; T. Yoshioka; A. Okuwaki is a Materials Science article available to read on EtoBox.

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Flexible PVC pellets were treated at 150-250ЊC in 0-7M NaOH solutions for 0-12 h. The degree of dehydrochlorination of flexible PVC pellets increased with increasing reaction temperature and was about 100% at 250ЊC over 5 h. A porous char, 2-16 mm in pore size, was produced. The dehydrochlorination of PVC in the flexible PVC was proceeded by a first-order reaction in alkaline solution. The maximum rate of the dehydrochlorination for flexible PVC was reached at 5M NaOH. The apparent activation energies were 22-35 kcal/mol in 1-7 M NaOH for flexible PVC.

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Author

Shun-Myung Shin; T. Yoshioka; A. Okuwaki

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0021-8995)

Published

1998

Language

EN

Field

Materials Science (Physical Sciences)