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Chelate polymers. IV. siloxanes functionalized with chelating groups derived from hydroxy‐ketones, their metal complexes and some polymers
Author(s) -
Vasiliu M.,
Cazacu M.,
Marcu M.,
Racles C.,
Vlad A.
Publication year - 2005
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.873
Subject(s) - chemistry , chelation , polymer chemistry , acetylacetone , condensation polymer , polymer , dimethylformamide , bifunctional , metal , chloride , organic chemistry , catalysis , solvent
New ligands were obtained by the reaction of 1,3‐bis(3‐aminopropyl)tetramethyldisiloxane, with acetylacetone, 2,4‐dihydroxybenzophenone and 2,4‐dihydroxyacetophenone. The structures were confirmed by electronic, IR and 1 H NMR spectroscopy and elemental analysis. The change of the refractive index of the siloxanes by their chemical modification was also examined. These compounds were used for coordination of some divalent metals. The ligands and their metal complexes were both soluble in common solvents, such as CHCl 3 , dimethylformamide, dimethylsulfoxide, N ‐methyl‐2‐pyrrolidone. Some of the bifunctional chelates were inserted into polymeric structures by polycondensation with the diacid chloride of bis( p ‐carboxyphenyl)diphenylsilane. Copyright © 2005 John Wiley & Sons, Ltd.