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Molecular orbital calculation of monomer reactivity ratios

✍ Scribed by Levinson, G. S.

Publisher
John Wiley and Sons
Year
1962
Weight
620 KB
Volume
60
Category
Article
ISSN
0022-3832

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✦ Synopsis

Abstract

The simple molecular orbital method is employed to calculate transition‐state conjugation energies which correlate well with observed monomer reactivity ratios. An examination of the model discloses the reasons it is possible to neglect both electronic repulsion and the fact that transition‐state separations are not the same for all monomerradical pairs. The parameters, Q and e, of the Alfrey‐Price treatment are compared to quantities calculated by the molecular orbital method.

πŸ“œ SIMILAR VOLUMES

Copolymerization of propylene and chloro
Copolymerization of propylene and chlorotrifluoroethylene. Estimation of monomer reactivity ratios
✍ M. Ragazzini; D. Carcano; M. Modena; G.C. Serboli πŸ“‚ Article πŸ“… 1970 πŸ› Elsevier Science 🌐 English βš– 378 KB

The results of propylene--chlorotrifluoroethylene copolymerizations, carried out with a boron alkyl catalytic system at temperatures in the range -40 Β° to 40 Β°, are reported. The monomer reactivity ratios of both monomers have been evaluated by a simplified nonlinear least squares method. The probab