The reactivity of p-nitrophenyl esters with surfactants in nonaqueous solvents. III. The effect of altering the head-groups of alkylammonium carboxylates dissolved in benzene
- 1 January 1980
- journal article
- research article
- Published by CSIRO Publishing in Australian Journal of Chemistry
- Vol. 33 (4) , 779-784
- https://doi.org/10.1071/ch9800779
Abstract
The rate of decomposition of p-nitrophenyl acetate, pnpa, has been measured in benzene solutions of a series of alkylammonium propionates, CH3(CH2),NH3+ -O2CCH2CH3 (where n = 3, 5, 7, 9 or 11), and a series of dodecylammonium carboxylates, CH3(CH2)11NH3+ -O2C(CH2)mCH3 where m = 1, 2, 6 or 7). The micellar rate constant is affected by the alkyl chain length. The bimolecular rate constant is affected by both the chain length and the acidity of the head-groups. The reactivity of longer chain esters with dodecylammonium propionate is markedly less than that of pnpa.Keywords
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