Abstract
The decomposition of p-nitrophenyl phosphate in solutions containing polyethyleneimine (PEI) or poly(benzyltrimethylammonium chloride)(PVBA-Cl) has been studied. The polyelectrolytes markedly affect the rate of substrate decomposition. PVBA-Cl catalyses the hydrolysis of the substrate at pH > 6 because the substrate/PVBA-Cl interactions facilitate ester bond cleavage. In PEI solutions nucleophilic attack by the free amino groups of the macroion leads to production of substituted p-nitroaniline (pH > 6). The effects of polyelectrolyte concentration and molecular weight are discussed.
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Schedule a callMore From: Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
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