Vanillin-Based Polymers—part II: Synthesis of Schiff Base Polymers of Divanillin and Their Chelation with Metal IonsReportar como inadecuado




Vanillin-Based Polymers—part II: Synthesis of Schiff Base Polymers of Divanillin and Their Chelation with Metal Ions - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

ISRN Polymer ScienceVolume 2012 2012, Article ID 532171, 5 pages

Research ArticleDepartment of Chemistry, Prairie View A&M University, Prairie View, TX 77446, USA

Received 5 September 2012; Accepted 27 September 2012

Academic Editors: A. He and B. F. Senkal

Copyright © 2012 Ananda S. Amarasekara and Ashfaqur Razzaq. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Condensation of renewable resources-based monomer divanillin with alkyl diamines gives Schiff base polymers with degree of polymerization DP ~25–32 in 88–95% yield. These yellow polymers are insoluble in water and common organic solvents, slightly soluble in warm DMSO, DMF and dissolves in aqueous NaOH. The polymers were characterized using FT-IR,

H, and

C NMR spectroscopy and by comparison with the model compound N,N′-bisvanillidene-1,3-propanediamine. Polymer prepared by condensation of divanillin and 1,6-diaminohexane is shown to chelate with CuII, FeII, and CoII metal ions in basic aqueous methanol.





Autor: Ananda S. Amarasekara and Ashfaqur Razzaq

Fuente: https://www.hindawi.com/



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