Polymerization photoinitiated by carbonyl compounds. XI. Styrene polymerization photoinitiated by cyclododecanones
To establish their potential as source of biradicals to initiate free-radical polymerization, 2-methyl- and 2,2,12-trimethylcyclododecanones were photolyzed in the presence of styrene. The initiation efficiency of both ketones is low - 0.03. The molecular weight of the obtained polymer is ca. 25% hi...
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| Autores principales: | , , , , |
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| Formato: | JOUR |
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_0887624X_v34_n10_p1941_Biondic |
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| Sumario: | To establish their potential as source of biradicals to initiate free-radical polymerization, 2-methyl- and 2,2,12-trimethylcyclododecanones were photolyzed in the presence of styrene. The initiation efficiency of both ketones is low - 0.03. The molecular weight of the obtained polymer is ca. 25% higher than that obtained employing photoinitiators that produce monoradicals. This difference is explained in terms of a mixed polymerization mechanism comprising mono- and biradicals. © 1996 John Wiley & Sons, Inc. |
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