caa a22 4500 475763394 CHVBK 20180406123557.0 cr unu---uuuuu 170329e20000101xx s 000 0 eng 10.1007/s003969900234 doi (NATIONALLICENCE)springer-10.1007/s003969900234 Influence of the chain length of K-soaps on the phase diagram and structural parameters of nonaqueous liquid crystals and the gel phase in K-soap/glycerol binary systems [Elektronische Daten] [H. -D. Dörfler, A. Hieke]  Analogously to the aqueous K-soap/water systems already examined, the five glycerol · (Gl)-containing systems KC n /Gl (n = 12, 14, 16, 18, 22) also built up hexagonal (Hα), lamellar (Lα), isotropic micellar (S), gel-like (G) and crystalline phases (C). These phases were identified by texture observations with a polarizing microscope, by differential scanning calorimetry measurements and by X-ray diffraction investigations. The appertaining phase regions were plotted in the binary phase diagram. Binary Gl-containing K-soap systems have the following properties. The Hα phase is built up at low soap concentration. The Lα phase is formed at high soap concentrations. The temperature of the phase transition Hα ⇆ S runs through a maximum. Increasing the chain lengths of the soaps shifts the formation of the Hα phase to lower soap concentration. A strong correlation between the chain length of K-soaps and the d values of Lα, Hα, G and C phases is found. Based on the comparison of the X-ray diffractograms of the G phase a structural model is proposed. The G phase consists of two groups of domains with two different dimensions. Springer-Verlag Berlin Heidelberg, 2000 Key words X-ray diffraction measurements nationallicence Nonaqueous liquid crystals nationallicence Gel phase nationallicence Structural parameters nationallicence K-soaps nationallicence Dörfler H. -D TU Dresden, Institut für Physikalische Chemie und Elektrochemie; Kolloidchemie Mommsenstrasse 13, D-01062 Dresden Germany, DE aut Hieke A. TU Dresden, Institut für Physikalische Chemie und Elektrochemie; Kolloidchemie Mommsenstrasse 13, D-01062 Dresden Germany, DE aut https://doi.org/10.1007/s003969900234 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s003969900234 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dörfler H. -D TU Dresden, Institut für Physikalische Chemie und Elektrochemie; Kolloidchemie Mommsenstrasse 13, D-01062 Dresden Germany, DE aut NATIONALLICENCE 700 1- Hieke A. TU Dresden, Institut für Physikalische Chemie und Elektrochemie; Kolloidchemie Mommsenstrasse 13, D-01062 Dresden Germany, DE aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer