Abstract

The alkaline hydrolytic stability of quaternary ammonium-functionalized organosiliconate has been studied using 13C NMR. The half-life of (CH3O)3Si(CH2)3N(CH3)3Cl was determined under conditions in which base-catalyzed Si-R bond cleavage occurs. At 200°C, t1/2 decreased by three orders of magnitude from pH 5 to pH 13. The formation of propyltrimethyl ammonium, and its subsequent further hydrolysis to propanol and trimethylamine, was verified by deuterium labeling experiments. The relevance of these findings to the possible use of these reagents in novel materials synthesis is discussed.

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