ISSN:
1022-1352
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
N-Vinyl-2-pyrrolidone - 2-(dimethylamino)ethyl methacrylate copolymers were quaternized with octyl bromide in tetramethylene sulfone. The quaternization kinetics was studied, varying the concentrations of reagents and the composition of copolymers. The initial rate constant is not disturbed by the concentration of reagents, but it is by the initial copolymer composition: the higher the initial octyl bromide concentration, the higher the maximal conversion rate. These kinetic results were interpreted, observing the influence of the steric effect, the electrostatic effect and the effect of solvation. The kinetic models proposed in the literature were applied to our data and discussed. None of them describes perfectly the behaviour of our system.
Additional Material:
9 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/macp.1995.021960120
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