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  • 1
    Electronic Resource
    Electronic Resource
    Compressive properties of glass fiber reinforced rigid polyurethane foam (1984)
    s.l. : American Chemical Society
    Industrial and engineering chemistry 23 (1984), S. 605-608 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/i300016a019
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  • 2
    Electronic Resource
    Electronic Resource
    Photoconductive properties of TiO2 films prepared by the sol–gel method and its application (1997)
    Springer
    Journal of materials science 32 (1997), S. 3183-3188 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The Photoconductive characteristics of TiO2 films prepared by the sol-gel method, and the photovoltaic characteristics fabricated with the resulting TiO2 film and phthalocyanine nickel (NiPc) are investigated. For a TiO2 film with hydroxypropyl cellulose (Hpc) heat treated at 500°C for 10 min, the relative sensitivity is about ten times higher than that without Hpc. A space-charge-limited current is observed in the dark current–voltage characteristic of the TiO2 film with Hpc. It is found that the TiO2 film with Hpc has a photosensitizing effect. The photovoltaic characteristics of TiO2(Hpc)/NiPc are as follows: the short-circuit current density, Jsc is 5.6×10-7 A cm-2, the open-circuit voltage, Voc is 0.24 V, the fill factor (F.F) is 0.64 and the power conversion efficiency, η is 0.73. Furthermore, the carrier transport mechanisms of the TiO2(Hpc)/NiPc photovoltaic cell are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018602801793
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  • 3
    Electronic Resource
    Electronic Resource
    Grafting of styrene onto carbon fiber having perester groups (1985)
    Springer
    Polymer bulletin 13 (1985), S. 7-14 
    Details
    ISSN: 1436-2449
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary The oxidized carbon fiber having t-butyl perester groups was prepared by the esterification of acid chloride groups on the carbon fiber with t-butyl hydroperoxide. Then, graft polymerization of styrene onto the carbon fiber having t-butyl perester group was carried out. The concentration of monomer affected grafting efficiency. The grafting efficiency increases with the polymerization time and reachs a constant value above 70°C. Addition of Fe 2+ and Cu 2+ to the polymerization system at a concentration of 0.5–1.0×10 -5 mol/l gave the maximum grafting efficiency.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00264234
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  • 4
    Electronic Resource
    Electronic Resource
    Glass fiber having isocyanate group on the surface (1984)
    Springer
    Polymer bulletin 12 (1984), S. 41-48 
    Details
    ISSN: 1436-2449
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary Reaction of silanol groups on the surface of glass fiber with diisocyanates were investigated. It was found that the effect of organometallic catalysts upon the reaction varied with their metal ions or their ester substituents. Then the addition reaction of isocyanate group on glass fiber surface, with amino acid was carried out successfully to prepare a glass fiber-amino acid adduct.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00258270
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  • 5
    Electronic Resource
    Electronic Resource
    Carbon fiber having isocyanate group on the surface (1984)
    Springer
    Polymer bulletin 12 (1984), S. 523-530 
    Details
    ISSN: 1436-2449
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary Reaction between diisocyanate and the hydroxyl groups on the surface of carbon fiber oxidized by nitric acid was investigated. It was found that polar solvents were favorable for the reaction. Stronger amines and Ba-laurate catalysts gave good results. Further, rigid polyurethane foam reinforced by the carbon fiber thus prepared was found to show improved bending properties.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00958658
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  • 6
    Electronic Resource
    Electronic Resource
    The synthesis and thermotropic liquid crystalline behavior of the novel poly(aryl ether ketone)s containing chloro-side group (1997)
    Springer
    Polymer bulletin 38 (1997), S. 621-625 
    Details
    ISSN: 1436-2449
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract. The novel poly(aryl ether ketone)s containing chloro-side group were synthesized by nucleophilic substitution reactions of 4,4′-biphenol and chlorohydroquinone with either 4,4′-difluorobenzophenone (BP/CH/DF) or 1,4-bis(p-fluorobenzoyl)benzene (BP/CH/BF) and their thermotropic liquid crystalline properties were characterized by a variety of experimental techniques. The thermotropic liquid crystalline behavior was observed in the copolymers containing 50 and 70% biphenol. Melting transition (Tm) and isotropization transition (Ti) both appeared in the DSC thermograms. A banded texture was formed after shearing the sample in the liquid crystalline state. The novel poly(aryl ether ketone)s had relatively higher glass transition temperature (Tg) in the range of 168 ∼ 200 °C and lower melting temperature (Tm) in the range of 290 ∼ 340 °C. The thermal stability (Td) was in the range of 430 ∼ 490 °C.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002890050097
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  • 7
    Electronic Resource
    Electronic Resource
    Magnetic properties of metal layer deposited by reduction of metal ions contained in polymer with applying magnetic field (2000)
    Springer
    Journal of polymer research 7 (2000), S. 57-61 
    Details
    ISSN: 1572-8935
    Keywords: Metal deposition ; Polyacrylonitrile ; Magnetic field ; Coercivity ; Flux density
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Metal layer was deposited by the reduction of NiCl2 and CoCl2 in polyacrylonitrile film after applying an external magnetic field in directions parallel and perpendicular to the surface of the film; the magnetic properties of the metal-deposited film were investigated. When the parallel magnetic field was applied, the values of coercivity (Hc), remanent flux density (Br) and maximum flux density (Bs) increased regardless of the composition of the metal ions, compared with the case without the application of the magnetic field. From the scanning electron micrographs and X-ray diffraction analyses, it was shown that the growth of crystalline orientation in the deposited metals was enhanced by applying a parallel magnetic field.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s10965-006-0104-1
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  • 8
    Electronic Resource
    Electronic Resource
    The new class of thermotropic liquid-crystalline polymers: poly(ether ether ketone ketone)s based on a chloro side group (1997)
    Springer
    Journal of materials science 16 (1997), S. 1813-1815 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018564501406
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  • 9
    Electronic Resource
    Electronic Resource
    Graft copolymerization of acrylonitrile and acrylonitrile-styrene onto carbon fibers containing unsaturated groups (1983)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 118 (1983), S. 133-143 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Pfropfcopolymerisationen von Acrylnitril und Acrylnitril-Styrol-Mischungen auf Kohlenstoff-Fasern, die ungesättigte Gruppen enthielten, wurden untersucht. Mit Acrylnitril ergaben sich nur sehr kleine Pfropfausbeuten, verglichen mit Styrol. Der Einfluß von Monomerkonzentration, Initiatoren, Lösungsmitteln und Temperatur wurde bestimmt.Bei den Pfropfcopolymerisationen mit Acrylnitril-Styrol-Gemischen wurden sehr niedrige Pfropfgeschwindigkeiten und Pfropfausbeuten für Gemische mit über 8% Acrylnitril gefunden. Die Copolymerisationsparameter wurden nach der Fineman-Ross-Methode sowohl für die Pfropfzweige als auch fur das ungepfropfte Copolymere bestimmt; dabei ergaben sich große Unterschiede bei den Parametern der Pfröpflinge und des ungepfropften Copolymeren.
    Notes: Graft copolymerization of acrylonitrile and acrylonitrile-styrene onto carbon fibers containing unsaturated groups was studied. Graft copolymerization of acrylonitrile was found to result in a very low grafting yield in comparison with styrene, and it remained nearly constant in the latter stage of the reaction. The effects of monomer concentrations, initiators, solvents, and reaction temperature on the monomer reactivity ratios were studied by using Hayes's equation to calculate the reactivity ratio.For graft copolymerization of acrylonitrile-styrene were studied the rate of graft polymerization and the grafting yield with varying monomer compositions, both of which were found to be very low in the range of monomer compositions containing acrylonitrile at a level more than 8%. The monomer reactivity ratios for each monomer were calculated by use of the Fineman-Ross method after the analytical determination of compositions of both grafted copolymer and ungrafted copolymer, and it was found that the monomer reactivity ratios for the grafted copolymer were very different from those for the ungrafted copolymer.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1983.051180110
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  • 10
    Electronic Resource
    Electronic Resource
    Thermosetting mechanism of polyethersulfone (1988)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 160 (1988), S. 141-154 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Der Wärmehärtungsmechanismus von zu Anstrichen verwendeten Polyethersulfonen wurde unter Verwendung von FTIR/PAS und ESCA untersucht. Als Ergebnis wurde bestätigt, daß der Luftsauerstoff Einfluß auf den Wärmehärtungsmechanismus hat. Das heißt, die Härtung des Polyethersulfonfilms beginnt an der Oberfläche und verläuft entsprechend Reaktion (4) weiter.
    Notes: Thermosetting mechanism of paint-use polyethersulfones was studied by utilizing FTIR/PAS and ESCA. As a result, it was confirmed that the oxygen in the air has an effect on the thermosetting mechanism. That is, the polyethersulfone film were baked from the surface, and proceeded according to reaction (4).
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1988.051600111
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