2005年1月
Effect of hydrogen transferred from solvent and gaseous hydrogen on thermal decomposition of dehydrochlorinated poly(vinyl chloride)
POLYMER DEGRADATION AND STABILITY
- ,
- 巻
- 87
- 号
- 1
- 開始ページ
- 95
- 終了ページ
- 102
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1016/j.polymdegradstab.2004.07.010
- 出版者・発行元
- ELSEVIER SCI LTD
Poly(vinyl chloride) (PVC) dehydrochlorinated at 300degreesC was decomposed in tetralin at 440degreesC or 470degreesC for 60min under 7.1 MPa initial pressure of nitrogen or hydrogen or of hydrogen in the presence of a nickel-molybdenum catalyst. A tetrahydrofuran-insoluble fraction, a hexane-insoluble undistilled fraction, a hexane-soluble undistilled fraction, and a liquid product were the main products at both temperatures. At 440 C under nitrogen. the yield of liquid product was 7.1%. but the yield increased to 43.2% under hydrogen in the presence of the catalyst at 470degreesC. Linear relationships were observed between the yieids of the products derived from the dehydrochlorinated PVC and the total amounts of hydrogen transferred from tetralin and gaseous hydrogen. Hydrogen transferred from the solvent and from gaseous hydrogen promoted the degradation of dehydrochlorinated PVC and reduced the amount of residual chlorine in the degradation products. (C) 2004 Elsevier Ltd. All rights reserved.
- リンク情報
- ID情報
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- DOI : 10.1016/j.polymdegradstab.2004.07.010
- ISSN : 0141-3910
- CiNii Articles ID : 80017081564
- Web of Science ID : WOS:000225743400012