Abstract
The role of dimethyl ditelluride (MeTe)2 for the organotellurium-mediated living radical polymerizations (TERPs) of styrene (St) and methyl methacrylate (MMA) was kinetically studied. For both St and MMA, there was a rapid reversible activation-deactivation process mediated by (MeTe)2, i.e., P-TeMe + MeTė ⇄ P ̇ + (MeTe)2: (MeTe)2 worked as an efficient deactivator of the propagating radical Ṗ, and the radical MeTė worked as a highly reactive activator of the dormant species P-TeMe. This rapid reversible process accounted for the dramatic improvement of the polydispersity controllability with the addition of even a small amount of (MeTe)2 for these polymerizations.
Original language | English |
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Pages (from-to) | 1881-1885 |
Number of pages | 5 |
Journal | Macromolecules |
Volume | 40 |
Issue number | 6 |
DOIs | |
Publication status | Published - Mar 20 2007 |
Externally published | Yes |
ASJC Scopus Subject Areas
- Organic Chemistry
- Polymers and Plastics
- Inorganic Chemistry
- Materials Chemistry