The effects of isopropyl alcohol, tert butyl alcohol, isopentyl alcohol, benzaldehyde on the first order rate constant k 1 of the basic hydrolysis reaction of 2,4 dinitrochlorobenzene in the solution of cetyltrimethyl...The effects of isopropyl alcohol, tert butyl alcohol, isopentyl alcohol, benzaldehyde on the first order rate constant k 1 of the basic hydrolysis reaction of 2,4 dinitrochlorobenzene in the solution of cetyltrimethylammonium bromide(CTAB) are studied. The results show that k 1 decreases with increasing the concentration of small organic additive. It was found that the smaller the alcohol solubility in water and the larger the binding constant with the micelles, the faster the reaction rate decreases. The pseudophase ion exchange model is applied to quantitatively treat the experimental data. The above results are consistent with that obtained from dynamic light scattering, and are interpreted in terms of the change in micellar structure.展开更多
文摘The effects of isopropyl alcohol, tert butyl alcohol, isopentyl alcohol, benzaldehyde on the first order rate constant k 1 of the basic hydrolysis reaction of 2,4 dinitrochlorobenzene in the solution of cetyltrimethylammonium bromide(CTAB) are studied. The results show that k 1 decreases with increasing the concentration of small organic additive. It was found that the smaller the alcohol solubility in water and the larger the binding constant with the micelles, the faster the reaction rate decreases. The pseudophase ion exchange model is applied to quantitatively treat the experimental data. The above results are consistent with that obtained from dynamic light scattering, and are interpreted in terms of the change in micellar structure.
