Effects of solvent on degradation of poly(vinyl chloride)

T. Kamo; Y. Kondo; Y. Kodera; Y. Sato; S. Kushiyama

doi:10.1016/S0141-3910(03)00088-0

Effects of solvent on degradation of poly(vinyl chloride)

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

^*Corresponding author for this work

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

25 Citations (Scopus)

Abstract

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 (C_i).

Original language	English
Pages (from-to)	187-196
Number of pages	10
Journal	Polymer Degradation and Stability
Volume	81
Issue number	2
DOIs	https://doi.org/10.1016/S0141-3910(03)00088-0
Publication status	Published - 2003
Externally published	Yes

Keywords

Decalin
Dehydrochlorination
PVC
Reaction mechanism
Tetralin

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Polymers and Plastics
Materials Chemistry

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10.1016/S0141-3910(03)00088-0

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title = "Effects of solvent on degradation of poly(vinyl chloride)",

abstract = "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).",

keywords = "Decalin, Dehydrochlorination, PVC, Reaction mechanism, Tetralin",

author = "T. Kamo and Y. Kondo and Y. Kodera and Y. Sato and S. Kushiyama",

year = "2003",

doi = "10.1016/S0141-3910(03)00088-0",

language = "English",

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journal = "Polymer Degradation and Stability",

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TY - JOUR

T1 - Effects of solvent on degradation of poly(vinyl chloride)

AU - Kamo, T.

AU - Kondo, Y.

AU - Kodera, Y.

AU - Sato, Y.

AU - Kushiyama, S.

PY - 2003

Y1 - 2003

N2 - 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).

AB - 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).

KW - Decalin

KW - Dehydrochlorination

KW - PVC

KW - Reaction mechanism

KW - Tetralin

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U2 - 10.1016/S0141-3910(03)00088-0

DO - 10.1016/S0141-3910(03)00088-0

M3 - Article

AN - SCOPUS:0038010243

SN - 0141-3910

VL - 81

SP - 187

EP - 196

JO - Polymer Degradation and Stability

JF - Polymer Degradation and Stability

IS - 2

ER -

Effects of solvent on degradation of poly(vinyl chloride)

Abstract

Keywords

ASJC Scopus subject areas

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