| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5203887 | Polymer Degradation and Stability | 2008 | 4 Pages |
Abstract
A solution of NaOH dissolved in ethylene glycol (EG) was effective in the dechlorination of poly(vinyl chloride) (PVC) at atmospheric pressure. The degree of dechlorination increased with increasing temperature, reaching a maximum of 97.8% at 190 °C. The dechlorination proceeded under chemical control and exhibited first-order kinetics with an apparent activation energy of 170 kJ molâ1. The apparent rate constant for dechlorination in 1.0 M NaOH/EG was approximately 150 times greater than that in 1.0 M NaOH/H2O. In addition, dechlorination was faster at atmospheric pressure in NaOH/EG than under high pressure in NaOH/H2O. The dechlorination reaction occurs via a combination of E2 and SN2 mechanisms.
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Authors
Toshiaki Yoshioka, Tomohito Kameda, Shogo Imai, Akitsugu Okuwaki,