ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Polymer and Materials Science  (47)
  • 1985-1989  (23)
  • 1965-1969  (24)
  • 1
    Electronic Resource
    Electronic Resource
    Die galvanische Vernicklung. R. Brugger. Eugen G. Leuze Verlag, Saulgau/Württ. 1967. 400 S. mit 100 Abb., Kunstdruckpapier, Halbleinen DM 40,- (1967)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 18 (1967), S. 860-860 
    Details
    ISSN: 0947-5117
    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/maco.19670180916
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Ammoniakdiffusion in Polymerfilmen (1989)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 173 (1989), S. 69-84 
    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: With the help of a novel test method, diffusion-coefficients of ammonia were determined in 22 transparent, filmforming polymers at room temperature. This method is based upon the UV-VIS-spectroscopically followable reversible reaction of ammonia with 4-nitro phenol to a Meisenheimer-complex.The dye-building reaction was studied and analyzed by a simple approximation of the diffusion equation. Diffusion coefficients obtained are in good agreement with the few available data in the literature.The dependence of the NH3-diffusion coefficients upon the polymer structure corresponds with the obtained diffusion coefficients, which are known for permanent gases.The described method allows the measurement of diffusion coefficients, which are distinguished up to three orders of magnitude, without any problem (ethylcellulose: 1,07 · 10-7 cm2 · s-1; poly(vinylalcohol): 0.9 · 10-10 cm2 · s-1).
    Notes: Mit Hilfe einer neuartigen Untersuchungsmethode wurden die Diffusionskoeffizienten von Ammoniak (NH3) in 22 transparenten filmbildenden Polymeren bei Raumtemperatur bestimmt. Die Methode beruht auf der UV-VIS-spektroskopisch verfolgbaren reversiblen Reaktion von Ammoniak mit 4-Nitrophenol zu einem 4-Nitrophenolat-Ammoniak-Meisenheimer-Komplex.Die Farbbildungsreaktion im Polymerfilm wurde untersucht und anhand einer einfachen Näherung der Diffusionsgleichung ausgewertet. Die erhaltenen Diffusionskoeffizienten stimmen sehr gut mit den wenigen verfügbaren Literaturwerten überein.Die Abhängigkeit der NH3-Diffusionskoeffizienten von der Polymerstruktur ist weitgehend der für permanente Gase bekannten analog.Die beschriebene Methode erlaubt problemlos, Diffusionskoeffizienten zu messen, die sich bis zu drei Größenordnungen unterscheiden (Ethylcellulose: 1,07 · 10-7 cm2 · s-1; Polyvinylalkohol: 0,9 · 10-10 cm2 · s-1).
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1989.051730106
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Zum Einfluß polymere organischer Bindemittel auf das UV-VIS-Absorptionsverhalten organischer Verbindungen. III. Die Absorption des Pyronin B in polymeren BindemittelnTeil II: siehe [2] (1986)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 37 (1986), S. 657-659 
    Details
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1986.010371016
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Zum Mechanismus der Polymerisation von Butadien mittels Trimesitylvanadium (1986)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 37 (1986), S. 508-510 
    Details
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Trimesityl vanadium initiates the polymerization of butadiene, whereby the butadiene can be a component of an isobutene-free C4-hydrocarbon mixture. At this reaction a change of the valency of vanadium takes place which is expressed by the appearance of ESR signals. The change of valency shows that no insertion of butadiene into a V— bond takes place. A mechanism for the initiation is proposed.
    Notes: Trimesitylvanadium initiiert die Polymerisation von Butadien, wobei das Butadien auch in isobutenfreien C4-Kohlenwasserstoffgemischen enthalten sein kann. Dabei vollzieht sich ein Wechsel der Oxidationsstufe des Vanadiums, was im Auftreten von ESR-Signalen zum Ausdruck kommt. Der Wertigkeitswechsel zeigt, daß keine Insertion des Butadiens in eine V—C-Bindung erfolgt. Ein Mechanismus der Initiierung wird vorgeschlagen.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1986.010370809
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Aromatic ionomer membranes. I. Physical and mechanical properties (1985)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 30 (1985), S. 2821-2836 
    Details
    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: The physical properties of a new class of ionomers comprising a semirigid polyphenylene ether backbone were investigated. The material was studied principally in the form of films of ca. 150 μm micrometers in thickness. The study focused on material of 600 equivalent weight. Torsion pendulum results showed a significant increase in the glass transition temperature of the ionomer relative to that of its ester precursor but gave no evidence of ionic clustering. Stress-strain studies performed both in water and in 20% KOH solution at 80°C indicated that the mechanical properties of the material remain stable under these conditions. Differential scanning calorimetry was used to investigate both the high temperature behavior and the water uptake of the ionomer films. The behavior of this ionomer at high temperature and in an alkaline solution is of particular interest in view of the possible use of these films as separators in an alkaline electrolysis cell.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1985.070300709
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Aromatic ionomer membranes: II. Evaluation as separators for advanced alkaline water electrolyzers (1985)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 30 (1985), S. 2837-2846 
    Details
    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: The sorption and transport properties of newly developed aromatic carboxylate polymers have been investigated in the context of their application as membrane separators for water electrolyzers. Conductance measurements of aromatic carboxylates of various equivalent weights have been performed as a function of current density, temperature, and electrolyte environment. Results have been compared with those for Nafion 117. The sorption results in dilute and concentrated solution show large water and electrolyte uptake for the aromatic carboxylate films. Furthermore, relatively large sodium ion self-diffusion coefficients have been found in both dilute and concentrated solution environments. The results of these measurements are characteristic of microporous films. The de conductance behavior of the aromatic carboxylate ionomers is quite different from that found for nonporous 1150 equivalent weight Nafion membranes. This difference is caused primarily by the microporous structure of the aromatic carboxylates, which results in large membrane specific conductances.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1985.070300710
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Polyphenylquinoxalines containing alkylenedioxy groups (1986)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 32 (1986), S. 5957-5964 
    Details
    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: A series of new polyphenylquinoxalines (PPQ) containing alkylenedioxy units within the backbone were prepared in high molecular weight forms (ηinh = 0.82-1.5 dL/g). The glass transition temperatures ranged between 203 and 241°C, decreasing with increasing length of the alkylenedioxy groups. Solution-cast films gave tensile strength, tensile modulus, and elongation at room temperature as high as 14,400 psi, 378,000 psi, and 8.1%, respectively. The PPQ were readily compression molded to provide compact tension specimens that gave fracture energy (GIc) as high as 10.5 in. lb/in.2 Titanium to titanium tensile shear specimens provided average strengths of 4400 psi at 26°C, 3100 psi at 177°C, and 2010 psi at 203°C. The PPQ were resistant to normal aircraft fluids but were soluble in chlorinated solvents.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1986.070320724
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    The polymerisation of caprolactam. I. Equilibrium studies on the system caprolactam/hexamethylenediamine/polycapramide (1966)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 95 (1966), S. 135-142 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Im System Caprolactam/Hexamethyleadiamin/Polycapramid wurden bei 220 und 250°C die Gleichgewichtsgrenzkonzentrationen von 5,4 bzw. 7,5% Caprolactam gefunden. Die Reaktionswärme, die Entropieänderung bei der Lactam-Addition und die Ceiling-temperatur sind ähnlich den bei der wasserinitiierten Caprolactampolymerisation gefundenen Werten. Die theoretischen Berechnungen von TOBOLSKY und EISENBERG für das amininitiierte System wurden experimentell bestätigt.
    Notes: Limiting equilibrium concentrations of caprolactam of 5.4% and 7.5% at 220° and 250°C. have been obtained in the system caprolactam/hexamethylenediamine/polycapramide. The heat of reaction, the entropy change for the lactam addition reaction, and the ceiling temperature are similar to those obtained for water-initiated caprolactam polymerisation. The theoretical calculations of TOBOLSKY and EISENBERG on the amine-initiated system have been confirmed experimentally.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1966.020950111
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Polymers - The Origins and Growth of a Science, by Herbert Morawetz, Wiley-Interscience, New York, 1985, 306 pp. Price: $47.50 (1986)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Letters Edition 24 (1986), S. 297-298 
    Details
    ISSN: 0887-6258
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1986.140240622
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Beitrag zur Vermeidung von chloridinduzierter transkristalliner Spannungsrißkorrosion bei höher legierten Chrom-Nickel-Stählen durch InhibitorenMitteilung aus dem Institut für Werkstoffkunde der TH Darmstadt. Auszug aus der Dissertation des erstgenannten Verfassers, Darmstadt D17, demnächst. (1985)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 16 (1985), S. 173-181 
    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
    Description / Table of Contents: Avoidance of Chloride Induced Transgranular Stress Corrosion Cracking of Stainless Steels by InhibitorsThe possibility to avoide chloride induced transgranular SCC of stainless steels with higher contents of chromium and nickel with the aid of organic inhibitors is shown. This method is successful as well in boiling aqueous solutions with high chloride concentration (open system) as in closed systems (higher temperature and pressure) with low chloride contents.
    Notes: Obwohl die Möglichkeit zur Hemmung von Korrosionsvorgängen durch Inhibitoren schon seit langem bekannt ist, wurden bisher kaum Versuche unternommen, die chloridinduzierte Spannungsrißkorrosion von höherlegierten Chrom-Nickel-Stählen durch Anwendung dieser Kenntnisse zu verhindern. In der vorliegenden Arbeit werden Ergebnisse aus Untersuchungen mit Tensiden und handelsüblichen Inhibitoren vorgestellt, die erkennen lassen, daß sowohl in höher chloridhaltigen siedenden wäßrigen Lösungen (offenes System) als auch in geschlossenen Systemen mit geringem Chloridgehalt bei höheren Temperaturen und Drücken eine deutliche Standzeitverlängerung erreichbar ist.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19850160506
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...