ISSN:
0887-624X
Keywords:
radicals
;
low temperature
;
sulphur dioxide copolymerization
;
ESR
;
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Free radicals generated from a number of olefinic, acetylenic, and vinyl monomers in the presence of sulphur dioxide and tert-butyl hydroperoxide were investigated. In all reaction systems a sulphonyl propagating radical first appears which depropagates into the corresponding carbon radical at higher temperatures. The sulphonyl radicals were observed between -119 and -44°C, whereas the carbon radicals were observed from -63 to -1°C. The order of decreasing reactivity of the reaction system was: 3-hexyne 〉 1-heptene 〉 methyl acrylate 〉 acrylonitrile 〉 1-heptyne. © 1993 John Wiley & Sons, Inc.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/pola.1993.080310608
