Effects of solvent on degradation of poly(vinyl chloride)

T. Kamo*, Y. Kondo, Y. Kodera, Y. Sato, S. Kushiyama

*この研究の対応する著者

研究成果: Article査読

24 被引用数 (Scopus)

抄録

Poly(vinyl chloride) (PVC) was decomposed in t-decalin and tetralin at 300-460 °C under an initial nitrogen pressure of 4.0 MPa. To aid mechanistic discussions, some reactions were also performed in the absence of solvent. In the beginning of the reaction at 300 °C, PVC was converted to THF-insoluble dehydrochlorinated PVC (idcPVC) irrespective of the presence of solvent, by liberation of hydrogen chloride. In the reactions without solvent, oil and solid carbon were produced from idcPVC predominantly by degradation and condensation reactions respectively. In the presence of solvent, idcPVC was converted into oil directly or via THF-soluble dehydrochlorinated PVC (sdcPVC). Particularly in tetralin, the decomposition of idcPVC into oil was accelerated significantly over 440 °C. A reaction mechanism was discussed using two parameters, atomic ratio of hydrogen and carbon (H/C) and carbon content (Ci).

本文言語English
ページ(範囲)187-196
ページ数10
ジャーナルPolymer Degradation and Stability
81
2
DOI
出版ステータスPublished - 2003
外部発表はい

ASJC Scopus subject areas

  • 凝縮系物理学
  • 材料力学
  • ポリマーおよびプラスチック
  • 材料化学

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