Dehydrochlorination behavior of flexible PVC pellets in NaOH solutions at elevated temperature

Shun Myung Shin; T. Yoshioka; A. Okuwaki

doi:10.1002/(SICI)1097-4628(19980328)67:13<2171::AID-APP7>3.0.CO;2-B

Dehydrochlorination behavior of flexible PVC pellets in NaOH solutions at elevated temperature

Shun Myung Shin, T. Yoshioka, A. Okuwaki

ENV - Frontier Science for Advanced Environment

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

33 Citations (Scopus)

Abstract

Flexible PVC pellets were treated at 150-250°C 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 250°C over 5 h. A porous char, 2-16 μm 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 1-7M NaOH for flexible PVC.

Original language	English
Pages (from-to)	2171-2177
Number of pages	7
Journal	Journal of Applied Polymer Science
Volume	67
Issue number	13
DOIs	https://doi.org/10.1002/(SICI)1097-4628(19980328)67:13<2171::AID-APP7>3.0.CO;2-B
Publication status	Published - 1998 Mar 28

Keywords

Alkaline solution
Dehydrochlorination
First-order reaction
Flexible PVC
Porous char

ASJC Scopus subject areas

Chemistry(all)
Surfaces, Coatings and Films
Polymers and Plastics
Materials Chemistry

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10.1002/(SICI)1097-4628(19980328)67:13<2171::AID-APP7>3.0.CO;2-B

Cite this

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abstract = "Flexible PVC pellets were treated at 150-250°C 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 250°C over 5 h. A porous char, 2-16 μm 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 1-7M NaOH for flexible PVC.",

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AU - Yoshioka, T.

AU - Okuwaki, A.

PY - 1998/3/28

Y1 - 1998/3/28

N2 - Flexible PVC pellets were treated at 150-250°C 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 250°C over 5 h. A porous char, 2-16 μm 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 1-7M NaOH for flexible PVC.

AB - Flexible PVC pellets were treated at 150-250°C 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 250°C over 5 h. A porous char, 2-16 μm 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 1-7M NaOH for flexible PVC.

KW - Alkaline solution

KW - Dehydrochlorination

KW - First-order reaction

KW - Flexible PVC

KW - Porous char

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Dehydrochlorination behavior of flexible PVC pellets in NaOH solutions at elevated temperature

Abstract

Keywords

ASJC Scopus subject areas

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