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Annelated calixarenes composed of Calix[4]arenes with hydroxy groups in the endo and exo position
(1996)
Liquid membrane permeation of zinc, cadmium and nickel with 4-acyl-5-pyrazolones and ß-diketones
(1996)
Polyanion-polycation complex formation as a function of the position of the functional groups
(1996)
Polyelectrolyte complexes
(1996)
Schwermetalle und deren Bindung in Böden und Substraten des Rieselfeldgebietes südlich Berlin
(1996)
Ester, Fette, Waschmittel
(1996)
Kunststoffe
(1996)
Natur- und Kunststoffe
(1996)
NMR-Spektroskopie
(1996)
The influence of polyelectrolytes on structure formation in liquid crystalline Na-dodecylsulfate/decanol/water systems was investigated by means of small angle X-ray diffraction, rheology, NMR spectroscopy, and microscopy. By adding Na-polyacrylate (PAA) into the mesophase, the one-phase region is left and phenomena of phase separation into a solvent-rich and a polymer/surfactantrich phase occurs. By incoporating an anionic and cationic polyelectrolyte step by step the tendency of phase separation is increased drastically. The self-organization process can be regulated directly by varying the water content of the system. However, at a water content of 30% the properties of the resulting liquid crystal were changed drastically. X-ray diffraction shows a multitude of Bragg peaks, NMR shows a peak-splitting, and rheology shows a change from non-Newtonian to Newtonian-flow behavior. On the basis of the experimental results an ordered multilayer associate structure can be assumed.
Natur- und Kunststoffe
(1997)
Chemie : Stoffe, Reaktionen, Umwelt ; Ausgabe Mecklenburg-Vorpommern, Regelschule, 10, Lehrbuch
(1997)
Glas
(1997)
Erste Ergebnisse einer Fallstudie zur Stoffdynamik naturschutzrelevanter Böden der Döberitzer Heide
(1997)
Primärstoffwechsel, Shikimat- und Phenylpropan-Gruppe, Vitamine, Coenzyme, Pflanzeninhaltsstoffe
(1997)
Chitinase inhibitors
(1997)