COMPARISON OF DYNAMIC AND STATIC DEGRADATION OF POLY(VINYL CHLORIDE).

B. Pukánszky, Tibor T. Nagy, Tibor Kelen, Ferenc Tudos

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In the reported experiments, the thermal degradation of PVC was measured under dynamic and static conditions. The UV and IR spectra, as well as the molecular weight distribution of the PVC samples, taken after different time intervals were measured. It was established that during the dynamic PVC degradation, performed in a mixing chamber, two stages with different degradation rates can be distinguished both in extinction and torque vs. time curves. While oxygen does not, dissolved HCl does play an important role in the dynamic degradation: HCl steps into reaction with the formed polyenes and has a catalytic action. The chemical degradation, particularly the crosslinking, produces the changes in the rheological behavior of the material. Results were compared with those obtained under static conditions in argon, air, and HCl atmosphere.

Original languageEnglish
Pages (from-to)2615-2623
Number of pages9
JournalJournal of Applied Polymer Science
Volume27
Issue number7
DOIs
Publication statusPublished - Jul 1982

Fingerprint

Vinyl Chloride
Polyvinyl Chloride
Polyvinyl chlorides
Degradation
Polyenes
Argon
Molecular weight distribution
Crosslinking
Pyrolysis
Torque
Oxygen
Air
Experiments

ASJC Scopus subject areas

  • Polymers and Plastics

Cite this

COMPARISON OF DYNAMIC AND STATIC DEGRADATION OF POLY(VINYL CHLORIDE). / Pukánszky, B.; Nagy, Tibor T.; Kelen, Tibor; Tudos, Ferenc.

In: Journal of Applied Polymer Science, Vol. 27, No. 7, 07.1982, p. 2615-2623.

Research output: Contribution to journalArticle

Pukánszky, B. ; Nagy, Tibor T. ; Kelen, Tibor ; Tudos, Ferenc. / COMPARISON OF DYNAMIC AND STATIC DEGRADATION OF POLY(VINYL CHLORIDE). In: Journal of Applied Polymer Science. 1982 ; Vol. 27, No. 7. pp. 2615-2623.
@article{a5808ad6c6294f9ca05ec2ae0393b23a,
title = "COMPARISON OF DYNAMIC AND STATIC DEGRADATION OF POLY(VINYL CHLORIDE).",
abstract = "In the reported experiments, the thermal degradation of PVC was measured under dynamic and static conditions. The UV and IR spectra, as well as the molecular weight distribution of the PVC samples, taken after different time intervals were measured. It was established that during the dynamic PVC degradation, performed in a mixing chamber, two stages with different degradation rates can be distinguished both in extinction and torque vs. time curves. While oxygen does not, dissolved HCl does play an important role in the dynamic degradation: HCl steps into reaction with the formed polyenes and has a catalytic action. The chemical degradation, particularly the crosslinking, produces the changes in the rheological behavior of the material. Results were compared with those obtained under static conditions in argon, air, and HCl atmosphere.",
author = "B. Puk{\'a}nszky and Nagy, {Tibor T.} and Tibor Kelen and Ferenc Tudos",
year = "1982",
month = "7",
doi = "10.1002/app.1982.070270730",
language = "English",
volume = "27",
pages = "2615--2623",
journal = "Journal of Applied Polymer Science",
issn = "0021-8995",
publisher = "John Wiley and Sons Inc.",
number = "7",

}

TY - JOUR

T1 - COMPARISON OF DYNAMIC AND STATIC DEGRADATION OF POLY(VINYL CHLORIDE).

AU - Pukánszky, B.

AU - Nagy, Tibor T.

AU - Kelen, Tibor

AU - Tudos, Ferenc

PY - 1982/7

Y1 - 1982/7

N2 - In the reported experiments, the thermal degradation of PVC was measured under dynamic and static conditions. The UV and IR spectra, as well as the molecular weight distribution of the PVC samples, taken after different time intervals were measured. It was established that during the dynamic PVC degradation, performed in a mixing chamber, two stages with different degradation rates can be distinguished both in extinction and torque vs. time curves. While oxygen does not, dissolved HCl does play an important role in the dynamic degradation: HCl steps into reaction with the formed polyenes and has a catalytic action. The chemical degradation, particularly the crosslinking, produces the changes in the rheological behavior of the material. Results were compared with those obtained under static conditions in argon, air, and HCl atmosphere.

AB - In the reported experiments, the thermal degradation of PVC was measured under dynamic and static conditions. The UV and IR spectra, as well as the molecular weight distribution of the PVC samples, taken after different time intervals were measured. It was established that during the dynamic PVC degradation, performed in a mixing chamber, two stages with different degradation rates can be distinguished both in extinction and torque vs. time curves. While oxygen does not, dissolved HCl does play an important role in the dynamic degradation: HCl steps into reaction with the formed polyenes and has a catalytic action. The chemical degradation, particularly the crosslinking, produces the changes in the rheological behavior of the material. Results were compared with those obtained under static conditions in argon, air, and HCl atmosphere.

UR - http://www.scopus.com/inward/record.url?scp=0020151871&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0020151871&partnerID=8YFLogxK

U2 - 10.1002/app.1982.070270730

DO - 10.1002/app.1982.070270730

M3 - Article

AN - SCOPUS:0020151871

VL - 27

SP - 2615

EP - 2623

JO - Journal of Applied Polymer Science

JF - Journal of Applied Polymer Science

SN - 0021-8995

IS - 7

ER -