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  • 1
    ISSN: 0005-2736
    Keywords: Amphiphilic β-structural peptide ; Antimicrobial activity ; CD ; Hemolysis ; Liposome ; Peptide ; Phospholipid-peptide interaction
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine , Physics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Colloid & polymer science 261 (1983), S. 340-345 
    ISSN: 1435-1536
    Keywords: reversed micelles ; sodium octanoate ; 1-hexanol ; 13C-NMR ; Na-NMR
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The dynamic behavior of sodium octanoate (NaO), especially that of the polar headgroups of NaO, in1-hexanol in the presence of cosolubilized water was studied by Na-NMR and13C-NMR at 24 and 25 MHz. Na-NMR data have indicated that the mobility of the sodium ions of NaO shows the lowest value at 1.2 M of NaO at a given water content, which is related to the maximum amount of water cosolubilized into the system and the change in the structure of polar headgroups of NaO.13C-NMR data have shown that the mobility of methylene carbons, No. 5 and 6 of NaO, is higher than that of methylene carbons, No. 4 and 7, and that water molecules entered among the polar headgroups of NaO affect the mobility of methylene carbons of NaO, No. 5 and 6. The hydroxyl groups of1-hexanol were found to be contact with water molecules entered among the polar headgroups of NaO, and to fill the space among the hydrocarbon chains of NaO. By assuming spherical geometry the size of water pools and the average aggregation number were calculated, and the results were discussed on the basis of13C-NMR and Na-NMR data.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 33 (1987), S. 3037-3044 
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Permeability coefficients have been measured for CO2 and CH4 in polyethylene membranes at 20, 30, and 40°C and at applied gas pressures up to ca. 2 MPa and for CH4 in three kinds of rubber films at 25, 30, and 35°C and at applied gas pressures up to ca. 2.4 MPa. The pressure dependence of the logarithms of permeability coefficients became linear except for the CO2 - polyethylene system, where the pressure dependence became quadratic, with a minimum at a certain value of pressure. The linear and quadratic dependences can be interpreted by a free volume model of diffusion of a gas molecule in polymers. The temperature dependence of the permeability coefficients at zero pressure difference across the polymer film for each system obeyed an Arrhenius type equation.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Letters Edition 21 (1983), S. 195-198 
    ISSN: 0360-6384
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 316 (1962), S. 278-281 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Bis(N—R-salicylideneiminato)cobalt(II) (with R = methyl, ethyl, n-propyl, n-butyl) have been prepared as orange or red crystals. The examination of the UV-spectra of these complexes shows that the configuration of the methyl-derivative is different from that of the other derivatives. The latter ones show UV-spectra being quite similar to those of the isopropyl and sec-butyl derivatives, having a configuration of distorted tetrahedron. The methyl derivative most probably has a planar co-ordination around the cobalt(II) ion. It has also been found that the UV-spectra of the corresponding cobalt(II)complexes with R = cyclohexyl, benzyl, m-tolyl, and phenyl show features similar to those of the isopropyl and sec-butyl derivatives, having a configuration of distorted tetrahedron, too.
    Notes: Es wurden Bis-(N-R-Salicylaldimin)-Kobalt(II)-Komplexe (R = Methyl, Äthyl, n-Propyl, n-Butyl) als orange oder rot gefärbte Kristalle hergestellt. Wie aus den UV-Spektren dieser Verbindungen zu ersehen ist, besitzt des Methylderivat eine von den übrigen Derivaten abweichende Konfiguration. Die UV-Spektren dieser Komplexe gleichen denen der Isopropyl- und sekundären Butylderivate, die die Konfiguration eines verzerrten Tetraeders besitzen. Das Methylderivat besitzt sehr wahrscheinlich eine ebene Konfiguration um das Kobalt(II)-Ion. Es hat sich auch gezeigt, daß die UV-Spektren der entsprechenden Kobaltkomplexe mit R = Cyclohexyl, Benzyl, m-Tolyl, p-Tolyl und Phenyl Ähnlichkeit mit denjenigen der Isopropyl- und sekundären Butylderivate aufweisen, welche die Konfiguration eines verzerrten Tetraeders besitzen.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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