Studies of the solid-state thermal degradation of PVC. I. Autocatalysis by hydrogen chloride
β Scribed by K. Patel; A. Velazquez; H. S. Calderon; G. R. Brown
- Publisher
- John Wiley and Sons
- Year
- 1992
- Tongue
- English
- Weight
- 610 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0021-8995
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π SIMILAR VOLUMES
The rates of production of volatile material from PVA, PVC and vinyl acetate-~inyl chloride copolymers, covering the entire composition range, have been compared using thermal volatilization analysis. It is found that, at each extreme of the composition range, incorporation of the co-monomer unit re
A~tract--The molecular structural defects in four suspension-polymerized poly(vinyl chloride) (PVC) samples and their thermal dehydrochlorination rates in light and dark were determined quantitatively. Based on the influence of light, especially u.v., on the thermal stability of PVC, it is concluded
A technique is described for the accurate and reproducible estimation of hydrogen chloride evolved during the degradation of poly(viny1 chloride). Results of degrading PVC in solvents and in the solid state are reported, and explanations are suggested for the differences in the observed behavior.
A~tract--Infra-red spectra (2300-2000 cm ~) were studied for cast PVC films obtained after separation of the unreacted, partly deuterated Cd stearate from samples subjected to thermal degradation at 180" in air. Based on the absorbance at 2140 cm -1 corresponding to the C-D stretching vibration, the