P. Madec, E. Maréchal
Feb 1, 1983
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0
Influential Citations
37
Citations
Journal
Macromolecular Chemistry and Physics
Abstract
Due to its importance in the field of block-polycondensation and of chemical modification, we carried out an extensive study of the epoxy-carboxy reaction on models. This papier is related to the reaction of benzoic acid with 1-phenoxy-2,3-epoxypropane in the presence of a basic catalyst, N,N-dimethyldodecylamine. It is carried out in low polar solvents (xylene, chlorobenzene, and o-dichlorobenzene); essential kinetic parameters are reported. From studies carried out under stoichiometric or non-stoichiometric conditions a general rate equation (υ = k [acid]0.5 [epoxy] [amine]) is obtained. Kinetic relations are the same, no matter what the catalyst is: dimethyldodecylammonium benzoate or free amine. From these kinetic data it results that the overall mechanism involves two steps.