Isomer yields for butanes and butanes from the radiation degradation of polyolefins

Ho S.-Y. and O'Donnell J.H. (1984) Isomer yields for butanes and butanes from the radiation degradation of polyolefins. European Polymer Journal, 20 5: 421-424. doi:10.1016/0014-3057(84)90019-3


Author Ho S.-Y.
O'Donnell J.H.
Title Isomer yields for butanes and butanes from the radiation degradation of polyolefins
Journal name European Polymer Journal   Check publisher's open access policy
ISSN 0014-3057
Publication date 1984
Sub-type Article (original research)
DOI 10.1016/0014-3057(84)90019-3
Volume 20
Issue 5
Start page 421
End page 424
Total pages 4
Subject 1605 Policy and Administration
2507 Polymers and Plastics
Abstract γ-Irradiation of high and low density polyethylenes and ethylene-α-olefin copolymers at temperatures from 30 to 175° produces butane, and above 100°, butene, in addition to hydrogen and other volatile hydrocarbons. The butane has been shown to be mainly isobutane at 30°, except for polymers with butyl branches; the isobutane/n-butane ratio decreases with increasing temperature. The butene is mainly isobutene, with a lesser amount of 1-butene and only a trace of 2-butene. Scavenger studies indicate that both free radical and ionic intermediates are involved in the formation of the isomers. Irradiation of samples containing added n-butane show that only a portion of the isobutane can be formed by radiation-induced isomerization of primary product n-butane. Similarly, it is shown that 1-butene is an effective scavenger of H atoms to form n-butane, but is not significantly isomerized to isobutene.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
 
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