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  • 1
    Electronic Resource
    Electronic Resource
    Effect of Preparation Conditions of Pt Alloys on Their Electronic, Structural, and Electrocatalytic Activities for Oxygen Reduction - XRD, XAS, and Electrochemical Studies (1995)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 99 (1995), S. 4577-4589 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100013a032
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Alkali metal ion conductors based on sulfonated poly(p-phenylene terephthalamide) (1994)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 32 (1994), S. 3009-3017 
    Details
    ISSN: 0887-624X
    Keywords: Na ; Li poly(phenylene terephthalamide sulfonate salts) ion conductivity ; modified ethylene carbonate ; blend system ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: To obtain thermally stable and mechanically strong sodium and lithium conducting polymers, we prepared Na+ and Li+ poly(phenylene terephthalamide sulfonate salts) (MW ∼ 5500). We also synthesized oligo(ethylene oxide) (3, 5, or 7 units of ethylene oxide) substituted ethylene carbonate and poly[oxymethylene-oligo(oxyethylene)]. These are high boiling point liquids with high dielectric constants as well as metal chelating properties. Polyelectrolyte systems were prepared by mixing Na+ or Li+ poly(phenylene terephthalamide sulfonate) salts with various amounts of modified ethylene carbonate and/or poly[oxymethylene-oligo(oxyethylene)]. Films (0.1-0.5 mm thick) obtained from the blends were found to have considerable mechanical strength; forming free standing films. The ionic conductivities of the Na+ and Li+ polyelectrolyte systems were 10-6-10-5 S/cm at 25°C. Thermal properties of these blend systems were investigated in detail. © 1994 John Wiley & Sons, Inc.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pola.1994.080321602
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Plasma-polymerized carbon disulfide films as a hole transport layer in organic electroluminescent devices (1992)
    New York, NY : Wiley-Blackwell
    Polymers for Advanced Technologies 3 (1992), S. 429-431 
    Details
    ISSN: 1042-7147
    Keywords: Electroluminescence ; Plasma polymerization ; Hole transport layer ; Organic ; Carbon disulfide ; 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
    Notes: Electroluminescent devices were fabricated using plasma-polymerized carbon disulfide films, poly(CS2), and tris(8-quinolinolato)aluminum(III) complex, Alq, as the hole transport layer and the emitting layer, respectively. A cell structure of glass substrate/indium-tin-oxide/poly(CS2/Alq/Mg/Ag) was employed. Smooth hole injection from the electrode through the poly(CS2) layer and concomitant electroluminescence from the Alq layer were observed. Green emission with a luminance of 250 cd/m2 was achieved at a drive voltage of 14 V.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pat.1992.220030802
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  • 4
    Electronic Resource
    Electronic Resource
    Ionic conductors based on modified poly(p-phenylene terephthalamide) (1993)
    New York, NY : Wiley-Blackwell
    Polymers for Advanced Technologies 4 (1993), S. 106-113 
    Details
    ISSN: 1042-7147
    Keywords: Lithium conductor ; Modified poly(p-phenylene terephthalamide) ; Oligo(ethylene oxide) grafted ; 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
    Notes: Ionic conductors based on N-substituted oligo(ethylene oxide) poly(p-phenylene terephthalamide) (PPTA) were investigated. Two different PPTAs (Mv = 12,000 and 3600) were grafted with tri(ethylene oxide) and hexa(ethylene oxide). These modified PPTAs were found to be soluble in organic solvents such as dimethyl acetamide and dimethyl sulfoxide and were miscible with various concentrations of oligo(ethylene oxide). The resulting blends formed complexes with lithium trifluoromethanesulfonate (LiSO3CF3). The thermal and ionic conductive properties of the blends were investigated. The conductivities of some of the blends were in the range of 0.5-5.0 × 10-5 S/cm at 25°C and 0.5-5.0 × 10-4 S/cm at 100°C. The profile of conductivity at various temperatures followed the Vogel-Tammann-Fulcher (VTF) plots and it suggested that the major ionic transport took place in the amorphous phase.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pat.1993.220040208
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