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Schiff Base Mediated Sol-Gel Polymerization

Published online by Cambridge University Press:  10 February 2011

D. A. Lindquist ,
C. M. Harrison ,
B. Williams  and
R. D. Morris
D. A. Lindquist
Affiliation:
Department of Chemistry, University of Arkansas at Little Rock, Little Rock, AR 72204
C. M. Harrison
Affiliation:
Department of Chemistry, University of Arkansas at Little Rock, Little Rock, AR 72204
B. Williams
Affiliation:
Department of Chemistry, University of Arkansas at Little Rock, Little Rock, AR 72204
R. D. Morris
Affiliation:
Department of Chemistry, University of Arkansas at Little Rock, Little Rock, AR 72204
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Abstract

Formation of a Schiff base imine by reacting a primary amine with either an aldehyde or ketone was initiated by an aluminum compound acting as a Lewis acid catalyst. The water byproduct of the reaction then was used as an in situ reagent for subsequent hydrolysis and sol-gel condensation of the aluminum species. These reactions yielded a gel network containing the entrained Schiff base. Two examples of this synthetic approach are described with two different aluminum catalyst/reagents: a diethylaluminum diethylphosphate ester [(CH3CH2)2Al-O-P(O)(OCH2CH3)2] and triethyl aluminum [Al(CH3CH2)3]. Anhydrous ammonia and acetone were used as the Schiff base precursors.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 435: Symposium V – Better Ceramics Through Chemistry VII , 1996 , 427
Copyright
Copyright © Materials Research Society 1996

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