The catalytic activity of different polymers containing axime groups has been tested in the hydrolysis of structurally different esters of p-nitrophenol. The mechanism of hydrolysis, supported by indirect kinetic evidence, seems not to involve a pre-equilibrium with a polymer-ester complex. The reaction was investigated under pseudo-first-order conditions with an excess of oxime polymer. The values of the second-order catalytic rate coefficients suggest a reaction rate mainly controlled by steric effects and hydrophobic interaction between the ester hydrocarbon residue and the macromolecular chain.
Synthetic catalytic polymers containing oxime groups: Effect of substrate structure on esterolysis of p-nitrophenyl esters / A. M., E. Ranucci, Ruggeri, G. Gianni. - In: REACTIVE POLYMERS, ION EXCHANGERS, SORBENTS. - ISSN 0167-6989. - 8:3(1988), pp. 267-272.
|Titolo:||Synthetic catalytic polymers containing oxime groups: Effect of substrate structure on esterolysis of p-nitrophenyl esters|
|Settore Scientifico Disciplinare:||Settore CHIM/04 - Chimica Industriale|
|Data di pubblicazione:||1988|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1016/0167-6989(88)90302-9|
|Appare nelle tipologie:||01 - Articolo su periodico|