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  • 1
    Electronic Resource
    Electronic Resource
    Neue Bücher (1990)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 21 (1990), S. 313-313 
    Details
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19900210807
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  • 2
    Electronic Resource
    Electronic Resource
    Zur Darstellung von Alkylzirkoniumtrihalogeniden und Dialkylzirkoniumdihalogeniden (1971)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 383 (1971), S. 272-278 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Alkyl zirconium trihalides can be prepared from zirconium tetrachloride or tetrabromide and zinc dialkyls in toluene as a solvent. Using pyridine, dialkyl zirconium dihalides are formed. Some of these new organozirconium compounds are isolated and characterised in form of complexes with bipyridyl.
    Notes: Zirkoniumtetrachlorid und -bromid lassen sich in Toluol als Lösungsmittel durch Zinkdialkyle in Alkylzirkoniumtrihalogenide überführen. In Pyridin als Reaktionsmedium entstehen dagegen Dialkylzirkoniumdihalogenide, von denen einige als definierte Dipyridylkomplexe isoliert und charakterisiert werden konnten.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19713830307
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  • 3
    Electronic Resource
    Electronic Resource
    Ein neues metastabiles Oxometallat mit Tunnelstruktur: Ba2SrLu22O36 (1985)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 526 (1985), S. 60-66 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: A New Metastable Oxocompound with Tunnel Structure: Ba2SrLu22O36High temperature reactions yield single crystals of a new metastable compound: Ba2SrLu22O36 (hexagonal symmetry, space group C6h2-P63/m, a = 17.60(6), c = 3.33(4) Å, Z = 1). X-ray results led to an octahedra framework with two types of tunnels. A comparative discussion of the tunnel occupation is given.
    Notes: Hochtemperaturreaktionen führen zur metastabilen Verbindung Ba2SrLu22O36, die an Einkristallen mit Röntgenmethoden untersucht wurde (hexagonale Symmetrie, Raumgruppe C6h2-P63/m, a = 17,60(6), c = 3,33(4) Å, Z = 1). Ba2SrLu22O36 besitzt ein LnO6-Oktaedergerüst mit Tunnelstruktur. Die Besetzung der Tunnelpositionen wird vergleichend diskutiert.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19855260709
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  • 4
    Electronic Resource
    Electronic Resource
    Ba3Lu4O9: Synthese und StrukturuntersuchungProfessor Günther Rienäcker zum 80. Geburtstage am 13. Mai 1984 gewidmet (1984)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 512 (1984), S. 59-64 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Ba3Lu4O9: Synthesis and Crystal Structure DeterminationSingle crystals of Ba3Lu4O9 were prepared by high temperature reactions (CO2-Lasertechnique). The single crystal X-ray work leads to a rhombohedral symmetry with a = 8.96 Å and α = 39.42° (space group C34 - R3). Characteristic features of this crystal structure are shown and discussed.
    Notes: Mit CO2-Laser-Technik wurde Ba3Lu4O9 in einkristalliner Form dargestellt und mit Diffraktometerdaten röntgenographisch untersucht. Diese Verbindung kristallisiert rhomboedrisch mit a = 8,96 Å, α = 39,42° in der Raumgruppe C34 - R3. Charakteristische Eigenschaften dieser Kristallstruktur werden aufgezeigt.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19845120508
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  • 5
    Electronic Resource
    Electronic Resource
    Zur Verbindungsbildung von MeO:M2O3. VII. BaSrCaTm22O36, eine metastabile Verbindung mit partiell hoher Unordnung (1982)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 494 (1982), S. 103-108 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Compound Formation of MeO:M2O3. VII. BaSrCaTm22O36, a New Metastable Compound of High DisorderBaSrCaTm22O36 could be prepared by CO2-Laser technique. The metastable compound has hexagonal symmetry (a = 17.60, c = 3.35 Å; space group C2h6—P63/m). The X-ray investigations of the single crystals show a relationship to the SrCa2Lu10O18 structure. BaSrCaTm22O36 has a complicated and disordered metal distribution of Ba, Sr, and Ca in the tunnel structure.
    Notes: BaSrCaTm22O36 wurde mit CO2-Laser-Technik bei hohen Temperaturen präpariert. Es handelt sich um eine metastabile Verbindung mit hexagonaler Symmetrie (a = 17,60, c = 3,35 Å, Raumgruppe C2h6—P63/m). Die Röntgenstrukturuntersuchung an Einkristallen von BaSrCaTm22O36 zeigt einige Beziehungen zum SrCa2Lu10O18-Bautyp. Tunnelförmige Hohlräume sind hochungeordnet mit Ba, Sr und Ca besetzt.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19824940113
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  • 6
    Electronic Resource
    Electronic Resource
    Segmented block copolymers of uniform chain length and defined structure, 2Part 1: cf.7.. Investigation of some physical propertiesDedicated to Professor H.-J. Cantow on his 60th birthday (1984)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 185 (1984), S. 1469-1491 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Some physical investigations of segmented block copolymers of uniform chain length and defined structure and their constituents are described. Special attention was payed to the thermal behaviour of these new substances with respect 1. to the phase transformations in the solid and liquid state and 2. to the thermal stability of the materials. Several of these oligomers show phase transitions in the solid state. In some instances, the morphology of the solid material depends strongly on the sample history. The influence of the crystallization conditions is discussed. For the special case of esters of 4,4′-isopropylidenediphenol (bisphenol A) with isophthalic acid detailed investigations by dielectric and Brillouin spectroscopy of the glass-forming process are presented.
    Additional Material: 22 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1984.021850719
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  • 7
    Electronic Resource
    Electronic Resource
    113. Staubfreies Schmelzen von Reststoffen im Elektroofen mit Hohlelektroden (1994)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 66 (1994), S. 1226-1227 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.3306609114
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  • 8
    Electronic Resource
    Electronic Resource
    Elastic properties of thin ultraoriented poly(ε-caprolactone) films grown on ptfe substrates as revealed by Brillouin spectroscopy (1992)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part B: Polymer Physics 30 (1992), S. 1173-1176 
    Details
    ISSN: 0887-6266
    Keywords: poly(ε-caprolactone) films on highly oriented PTFE substrate ; Brillouin spectroscopy of ultraoriented poly(ε-caprolactone) films ; crystallization of ultra-oriented poly(ε-caprolactone) on PTFE sustrate ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/polb.1992.090301012
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  • 9
    Electronic Resource
    Electronic Resource
    About the microstructure of PCVD prepared crystal mats of statistical oligo-vinylidene-fluoride-trifluoroethylene in relation to other fluorinated polymers (1995)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part B: Polymer Physics 33 (1995), S. 237-246 
    Details
    ISSN: 0887-6266
    Keywords: oriented fluoro-oligomers ; chemical vapor deposition ; ferroelectricity ; glass transition ; Brillouin spectroscopy ; x-ray diffraction ; vinylidene fluoride ; trifluoroethylene ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The room temperature phase of the physical/chemical vapor-deposited statistical co-oligomer VDF/TrFE(70/30) has been characterized by different experimental methods such as small-angle x-ray scattering, wide-angle x-ray diffraction, size-exclusion chromatography, infrared absorption and optical refractometry. The characterization of the elastic properties was carried out using high-performance Brillouin spectroscopy in connection with special scattering geometries. The co-oligomer VDF/TrFE(70/30) was obtained by cracking the parent statistical copolymer and subsequently vapor depositing the shortened chains on highly oriented PTFE substrates (PIA-technique). The room temperature phase of the resulting oriented waxy crystal mats of VDF/TrFE(70/30) is predominantly ferroelectric. The physical properties are very different to those of similarly PIA-prepared n-alkanes, perfluoroalkanes, and blockfluoroalkanes. The microstructure of VDF/TrFE(70/30) is interpreted in terms of partially crystalline nano-sized structures giving rise to a marked freezing process below room temperature. © 1995 John wiley & Sons, Inc.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/polb.1995.090330208
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  • 10
    Electronic Resource
    Electronic Resource
    Poisson ratios and upper bounds of intrinsic birefringence from brillouin scattering of oriented polymers (1993)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part B: Polymer Physics 31 (1993), S. 1477-1485 
    Details
    ISSN: 0887-6266
    Keywords: oriented polymers ; Poisson's ratio ; intrinsic birefringence ; sound velocity ; elastic constants ; Brillouin scattering ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: To overcome the difficulties in measuring high-frequency shear constants of polymeric materials by ultrasonic or Brillouin scattering technques, we extrapolate results from oriented materials to zero birefringence. Shear constants C44 in the high-frequency limit (GHz) are determined for polyethylene, poly(ethylene terephthalate), poly(vinyl chloride), poly(methyl methacrylate), and polycarbonate using Brillouin scattering. Accurate values of Poisson's ratio are derived. The extrapolation to full orientation using an amended Moseley relation gives upper bounds for the “intrinsic birefringence.” Changes in the character of the orientation process are easily detected by monitoring the mode numbers, which are defined by analogy to Poisson's ratio. Extrapolation of these ratios to their upper bound 0.5 gives an independent check of the maximum intrinsic birefringence. © 1993 John Wiley & Sons, Inc.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/polb.1993.090311105
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