Gel Formation in Polyvinyl Chloride on Irradiation
The probable mechanism of crosslinking of polyvinyl chloride is discussed. A plot of log sol fraction vs dose for radioinduced gelation of polyvinyl chloride shows that the powdered samples gel at lower doses than film samples. A comparison of gelling doses with and without unsaturated additives suggests that the chain mechanism requires radiolytic formation of unsaturation. Heating of polyvinyl chloride to 50 deg C in vacuum after irradiation results in increased gelation and evolution of hydrochloric acid; this increase is probably due to an increase in unsaturation from the thermal treatment. (D.L.C.)
- Research Organization:
- British Insulated Callender's Cables, Ltd., London
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-16-020504
- OSTI ID:
- 4828993
- Journal Information:
- Nature (London), Journal Name: Nature (London) Journal Issue: 4830 Vol. 194; ISSN 0028-0836
- Publisher:
- Nature Publishing Group
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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