The paper describes the chemical modification of PVC consisting in introduction amino groups (1,4-dioxane, diethylenetriamine), and then cross-linking with dichlorodiethyl ether. optimal extraction time was obtained for polymer that had more chlorine atoms substituted diethylenetriamine polymers were characterized by infrared spectroscopy (FTIR), elemental analysis (CHN) differential thermal (D...

G eorge Sosnovsky*, Jan Lukszo3 Department of Chemistry. University of Wisconsin-Milwaukee, P.O. Box 413. Milwaukee, WI 53201 Z. Naturforsch. 49b, 1580-1585 (1994); received June 9, 1994 Cross-Linked Polyamines, Diethylenetriamine, Norspermidine, Spermidine Several synthetic approaches are explored for the preparation of polyamines which are cross-linked at the central, secondary nitrogen moiet...

The chelating agent diethylenetriamine penta-acetic acid was used to measure iron stores in 83 patients with chronic liver disease. Iron chelation was normal in patients with chronic cholestasis. Chelation was increased above the control range in 14 out of 26 patients with alcoholic cirrhosis, in nine out of 28 patients with non-alcoholiccirrhosis, and in 11 out of 15 cirrhotics with a portacav...

The solution behaviour of the square-planar gold(III) complex [Au(dien)Cl]Cl(2) (dien = 1,5- diamino-3-azapentane) was investigated by (13)H and (13)C NMR spectroscopy. We have found that (1)H NMR spectra of [Au(dien)Cl] Cl(2) are characterised by exchange behaviour over the whole pH range, and some exchange effects are also seen in (13)C NMR spectra of the deprotonated hydroxo derivative of th...

Pentamethyldiethylenetriamine, a precursor of polyurethane, was synthesized with 75% yield by permethylation diethylenetriamine methanol over composite copper catalysts.

chelating resins based on polyacrylonitrile and diethylenetriamine (pan-dta) wereprepared through the simple reaction of polyacrylonitrile with various volume percents ofdiethylenetriamine (dta), (25, 50, 75 and 100). the prepared resins were applied to removeheavy metal ions such as cu(ii), zn(ii) and cd(ii) from aqueous solutions. the sorptionbehaviors of the resins for these metal ions were ...