Résumé
The capability of three chain-transfer agents, O-alkyl-S-(1-ethoxycarbonyl)ethyl xanthates (CH3-CHCO2C2H5)S(C=S)OZ′, to control the free-radical polymerization of styrene and ethyl acrylate by the MADIX process was examined. The reactivity of the xanthates varied according to the following trend: Z′ = CH2CH3 < CH2CF3 < CH[P(O)(OEt)2]CF3. This change in reactivity allowed a lowering of the polydispersity index from 2.0 for Z′ = CH2CH3 to 1.15 for Z′ = CH[P(O)(OEt)2]CF3 in the case of the polymerization of styrene.
| langue originale | Anglais |
|---|---|
| Pages (de - à) | 1049-1054 |
| Nombre de pages | 6 |
| journal | Macromolecular Rapid Communications |
| Volume | 23 |
| Numéro de publication | 17 |
| Les DOIs | |
| état | Publié - 16 déc. 2002 |
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