Radiation-induced Ionic Reactions: Cyclopentadiene Polymerization
Investigations on the radiation-induced polymerization of certain monomers provided evidence for the production of ionic as opposed to radical initiation. Pure cyclopentadiene was irradiated with Co/sup 60/ gamma radiation. At -78.5 deg C a gel was formed after conversion of 1.6% of the monomer to polymer. The results of carbon-hydrogen analysis fitted an empirical formula C₅H₆. The efficiency of the reaction at low temperature, and the necessity for rigorous drying to attain high yield are criteria for the non- participation of radical processes. A mechanism for radiation-induced polymerization was formulated. (C.E.S.)
- Research Organization:
- Atomic Energy Research Establishment, Harwell, Berks, Eng.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-17-018140
- OSTI ID:
- 4735625
- Journal Information:
- Nature (London), Journal Name: Nature (London) Journal Issue: 4872 Vol. 197; ISSN 0028-0836
- Publisher:
- Nature Publishing Group
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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