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Radical polymerization of methyl methacrylate initiated by thermal and catalyzed decomposition of 1,2,4,5-tetraoxane

E. Borsig, O. Vadňalová, P. Kolár, and M. Lazár

Polymer Institute, Slovak Academy of Sciences, 809 34 Bratislava

 

Abstract:  The radical polymerization of methyl methacrylate initiated at elevated temperature by 6,6-bis(methoxycarbonylbutyl)-1,2,4,5-tetraoxane (TET) either alone or in the presence of nitrogen compounds (dimethylaniline, triethylamine, pyridine, N-bromosuccinimide), and Fe(III) or Co(II) acetylacetonate was studied. TET itself showed a very small initiation efficiency in polymerization, but its activity increased provided the decomposition of initiator was catalyzed by substances containing nitrogen. The overall energy of the methyl methacrylate polymerization initiated by the catalyzed decomposi­tion of TET with dimethylaniline was determined to be Ep = 67 kJ mol-1 The transfer constant to TET in the polymerization of methyl methacrylate initiated by azobisisobutyronitrile (AIBN) depended on the concentration of TET.

Full paper in Portable Document Format: 303a328.pdf

 

Chemical Papers 30 (3) 328–335 (1976)

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