Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Detlef Emeis"'
Publikováno v:
Analytical Chemistry. 79:2096-2100
The aim of our study was to show that NMR spectroscopy is an excellent method to obtain reliable information about the equilibrium between free formaldehyde and its formaldehyde releasers. For this purpose, we compared several O- and N-formal-based f
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 290:247-255
The present work investigates the phase transitions of monoglyceride emulsifier systems and pearlescent effects in cosmetic creams using 13 C-NMR spectroscopy and DSC. The four phases of monoglyceride emulsifier systems – the coagel, gel phase, liq
Autor:
P. Arlt, Klaus-Peter Wittern, T. Berg, Werner-Michael Kulicke, S. Wiesner, R. Brummer, Detlef Emeis
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 238:59-69
It could be shown that 1H NMR diffusion measurements can be used to study the dynamic exchange processes of water molecules in commercial W/O emulsions. In addition, it could be demonstrated that two different types of water droplets are present in t
Publikováno v:
Journal of Surfactants and Detergents. 4:379-384
Cosmetic oil-in-water emulsions with a stearyl phosphate emulsifier are examined by means of static and dynamic 31P nuclear magnetic resonance (NMR) techniques to characterize the molecular properties of the emulsifier in situ. The interfacially boun
Publikováno v:
Zeitschrift für Naturforschung B. 55:651-656
HR-MAS NMR spectroscopy was utilized for the characterization of three cosmetic emulsions. The emulsions had the same chemical composition and were prepared in the same way except the homogenization step. Magic angle spinning (M A S) of the emulsio
Publikováno v:
Contact dermatitis. 63(2)
Background: Positive patch test reactions to formaldehyde-releasers in patients co-reacting to formaldehyde are often ascribed to formaldehyde allergy. However, the formaldehyde content of patch test materials has not been investigated. Objectives: T
Autor:
Detlef Emeis, Martin Möller, Klaus-Peter Wittern, Thomas Dederichs, Tobias Sokolowski, Cécile Alberola
Publikováno v:
Journal of colloid and interface science. 307(2)
The phase transitions of monoglyceride emulsifier systems and pearlescent effects in cosmetic creams are investigated using ultrasonic velocity measurements. The transitions between the different phases of monoglyceride emulsifier systems—the coage
Publikováno v:
Polymer. 28:1200-1206
Several cyclic alkanes melt in two steps. Thermograms from differential scanning calorimetry are discussed with respect to the onset of molecular motion and the resulting degree of disorder. An attempt is made to correlate the thermal behaviour with
Autor:
A. Hasenhindl, H.-J. Cantow, D. Lausberg, Martin Möller, Wolfram Gronski, Detlef Emeis, Y. Shahab
Publikováno v:
Die Makromolekulare Chemie. 7:63-85
Publikováno v:
Polymer Bulletin. 12:557-563
A crystalline mesophase state in which molecules show conformational mobility is discussed for cyclododecane and octamethyltetrasiloxane.13C and29Si solid state NMR spectra show changes of the resonance signals which can be explained by changes of th