The absolute rate constants of anionic propagation by free ions and ion-pairs of living polystyrene
β Scribed by D.N. Bhattacharyya; C.L. Lee; J. Smid; M. Szwarc
- Publisher
- Elsevier Science
- Year
- 1964
- Tongue
- English
- Weight
- 133 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0032-3861
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π SIMILAR VOLUMES
The ion-pair propagation rates for isoprene have been determined in tetrahydrofuran with counter-ions lithium and sodium. Because of the instability of the carbonions of diene monomers in this solvent, a parallel spectroscopic study was carried out to check for the occurrence of side-reactions. With
## Abstract Propagation rate constants for the free radical polymerization of methacrylonitrile (MAN) have been obtained by pulsed laser photolysis (PLP). The temperature dependence of the propagation rate constants indicates a frequency factor of 10^(6,43 Β± 0,26)^ L Β· mol^β1^ Β· s^β1^ and an activa