A STUDY OF THE MECHANISM OF RADIATION-INDUCED GELATION IN MONOMER-POLYMER MIXTURES. May 1, 1961-October 31, 1962
It was found that the use of polyfunctional monomers can have a profound effect on the course of the radiation reactions of polymers. The radiation requirements for the crosslinking of polyethylene were reduced by using polyfunctional monomers. Polypropylene is inefficientiy crosslinked by radiation. However, the use of polyfunctional monomers greatly increased the efficiency of the radiationcrosslinking of polypropylene. Polyisobutylene, unlike polyethylene or polypropylene, not only does not crosslink under irradiation, but is in fact degraded. The use of polyfunctional monomers reverses the normal radiation reaction, resulting in facile crosslinking. Similar results were obtained for cellulose acetate. The properties of the various monomer-crosslinked materials showed substartial improvements. In particular, the heat stability of polyethylene and polypropylene was significantly improved. (auth)
- Research Organization:
- Radiation Applications Inc., Long Island City, N.Y.
- NSA Number:
- NSA-17-008135
- OSTI ID:
- 4738834
- Report Number(s):
- RAI-311
- Country of Publication:
- United States
- Language:
- English
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