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
  • Wiley-Blackwell  (3,241)
  • American Meteorological Society
  • 1960-1964  (2,266)
  • 1955-1959  (1,162)
Collection
Keywords
Publisher
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Stereogular polymers of methyl, iso-butyl and tert-butyl vinyl ethers (1963)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 66 (1963), S. 126-132 
    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: Es wurden neue Katalysatoren für die Synthese von Poly(methylvinyläther) (PMVE) mit einer höheren sterischen Regelmäßigkeit entwickelt. Eine auffallende Abhängigkeit der PMVE-Eigenschaften vom Taktizitätsgrade wird festgestellt. Die Infrarotanalyse wird zur Bestimmung des Taktizitätsindexes herangezogen. Ein Zusammenhang zwischen dem Index und kernmagnetischen Resonanzspektren, Dichte, Drehfestigkeit und Festigkeitseigenschaften ist vorhanden. Eine Charakterisierungsmethode für ein Katalysatorsystem, basierend auf der Taktizitätsverteilung in dem erhaltenen Polymerenprodukt, wird dargelegt. Meßergebnisse an sterisch regelmäßigen Polymeren von iso-Butyl- und tert-Butylvinyläthern werden angegeben.
    Notes: Development of new catalysts allowed the synthesis of more highly stereoregular poly(methyl vinyl ethers) (PMVE). PMVE properties are markedly dependent on the degree of stereoregularity. Infrared is employed to establish an index of stereoregularity. This index is correlated with nuclear magnetic resonance spectra, density, stiffness, and tensile properties. A method of characterizing a catalyst system by the stereoregularity distribution obtained in the polymer product is presented.Data is also presented for stereoregular polymers of iso-butyl and tert-butyl vinyl ethers.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1963.020660112
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Preparation and polymerization of vinyl esters of cyclic and polychloro fatty acidsPresented in part at the 141st National Meeting of the American Chemical Society, Washington, D. C., March, 1962. (1964)
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A: General Papers 2 (1964), S. 2523-2532 
    Details
    ISSN: 0449-2951
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Homopolymers and vinyl chloride copolymers have been prepared from the vinyl esters of mixed hydrogenated cyclized linolenic acid, 9,10-dichlorostearic acid, 9,10,12,13-tetrachlorostearic acid, 13,14-dichlorobehenic acid, 9(10)-phenylstearic acid and technical behenic acid. Vinyl 13,14-dichlorobehenate (29%)-vinyl chloride (71%) gave a copolymer with a brittle temperature of -2°C. All of the other copolymers with vinyl chloride had brittle temperatures of 16°C. or higher and behaved more like rigid plastics.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1964.100020604
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Changes in fine structure and mechanical properties induced by cyanoethylation of cotton yarns. II. Reacted without longitudinal shrinkagePaper presented before the 138th Meeting of the American Chemical Society, New York, September 11-16, 1960. (1961)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 5 (1961), S. 163-170 
    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 cellulose of cotton yarns was reacted with acrylonitrile under conditions preventing their longitudinal contraction. Changes taking place in the fine structure of the fiber were studied by means of optical microscopy, density measurements, x-ray diffraction, and thermal stress behavior measurements. The results indicate that in spite of the strong tensions developed in the yarns, the reaction proceeds in both the accessible and the crystalline regions with considerable volume expansion and eventual disappearance of crystalline structure. Suggestions of a glass transition temperature appear at substitutions slightly above D.S. = 1. Annealing becomes possible at substitutions above D.S. = 2 with the development of the cyanoethyl cellulose crystal structure and over 40% increase in tensile strength. Changes in tenacity, ultimate elongation, energy of rupture, and immediate elastic recovery were also observed.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1961.070051406
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Laminar and turbulent flow of unstable liquid-liquid emulsions (1962)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 8 (1962), S. 335-339 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Liquid-liquid dispersions containing various volume fractions of a petroleum solvent dispersed in water have been studied in laminar and turbulent flow conditions. If one assumes that the dispersion behaves as a single-phase fluid, measured friction factors may be used to calculate an effective viscosity of the mixture.In laminar flow, viscosities were found to be a function of capillary diameter, possibly due of the formation of a thin film of continous phase adjacent to the capillary wall. The thickness of this film was determined to be of the order of 10 to 25 μ, which is probably of the order of the average size of the droplets.Up to 20% solvent, the relative fluidity (or viscosity) of the dispersions was the same in laminar, vertical turbulent, and horizontal turbulent flow. In the laminar flow case viscosity decreased somewhat with flow rate and became essentially constant at a Reynolds number of about 1,000.In vertical turbulent flow all dispersions behaved as Newtonian fluids, and a single curve (Figure 6) is presented to predict fluidities. The 35 and 50% dispersions in horizontal flow exhibited non-Newtonian characteristics and had effective fluidities considerably less than the same dispersion in vertical flow but agreed with the horizontal turbulent flow results of Baron, et al. The apparent non-Newtonian behavior could be due to phase separation in the horizontal tube.Corrected laminar flow fluidities for dispersions with 35 and 50% solvent deviated from the vertical turbulent flow results. Reasons for this are unexplained. In laminar flow also, tube orientation affected the viscosity of the 50% dispersion.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690080314
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Neue Ergebnisse der Organozinn-ForschungErweiterte Fassung eines Vortrags, gehalten am 28. November 1957 auf der Vortragstagung „Organozinn-Verbindungen“ des Zinn-Informationsbüros (Düsseldorf) in Frankfurt/Main. (1958)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 70 (1958), S. 298-306 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es wird eine Übersicht über den gegenwärtigen Stand der Organozinn-Forschung gegeben. Zahlreiche neue, teilweise hier erstmals mitgeteilte Synthesen erlauben es, eine Fülle interessanter Verbindungen herzustellen. Auf einige neue Anwendungsmöglichkeiten von bestimmten Typen von Organozinn-Verbindungen wird hingewiesen. Besonders aussichtsreich erscheint die Verwendung im Pflanzenschutz.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19580701004
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Bis-monofluorcarbonyl-peroxyd (1960)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 72 (1960), S. 169-169 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19600720505
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Cyclooligomerisation von Butadien und Übergangsmetall-π-Komplexe (1963)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 75 (1963), S. 10-20 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es wird über Fortschritte auf dem Gebiet der Synthese und der Reaktionen einiger mittlerer Kohlenstoffringe berichtet sowie im Zusammenhang damit über neuartige π-Komplexe von Übergangsmetallen. Mit Hilfe katalytischer Verfahren können Cyclododeca-1.5.9-trien, Cycloocta-1.5-dien und Cyclododeca-1.5-dien aus Butadien bzw. aus Butadien und Äthylen außerordentlich leicht dargestellt werden.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19630750104
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Peroxide- and radiation-cured compounds filled with reinforcing fine-particle silicaPresented before the Division of Rubber Chemistry at the 138th meeting of the American Chemical Society, New York, September 1960. (1961)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 5 (1961), S. 397-400 
    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: There are indications that the chemical reaction involved in bound rubber formation proceeds via a free-radical mechanism for compounds filled with reinforcing hydrated fine-particle silica, as well as in the case of carbon black as filler. The high potential of silica as a rubber reinforcer is indicated by its bound rubber formation. This potential was realized by the extent of filler-polymer interaction developed in silica-filled vulcanizates cured by peroxide and by high-energy radiation, respectively. Both these relatively simple curing systems are postulated to effect crosslink formation via a free-radical mechanism. The value, after cure, of the ratio of the crosslink density of the filled compound to the crosslink density of the respective unfilled compound, η/η0, was taken to be a logical measure of the ability to reinforce. In natural rubber compounds filled with silica (30 vol.), the values of η/η0 obtained were 1.6-1.9 for peroxide-cured material, and 3.6 for radiation-cured material. Comparisons are made with similarly cured HAF black-filled stocks. Sulfur-cured natural rubber stocks filled with HAF black (30 vol.) generally exhibit η/η0 values in the range of 1.5 to 2.0. Comparative effects of antioxidants are described.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1961.070051604
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Methyl α-cyanoacrylate. I. Free-radical homopolymerizationPresented in part at the 136th Meeting of the American Chemical Society, Atlantic City, New Jersey, September 1959. (1960)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 4 (1960), S. 231-236 
    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: Methyl α-cyanoacrylate, when suitably inhibited by Lewis acids against anionic polymerization, can be polymerized readily with free-radical initiators to form hard, clear, high molecular weight polymers. The ratio of kp2/kt is approximately 0.021 at 60°C. if 100% efficiency of initiation by azobisisobutyronitrile is assumed. Acceleration occurs at very low conversion to polymer during bulk polymerizations. The homopolymer is thermally unstable at temperatures only slightly above the glass temperature (estimated to be 165-170°C.). Degradation of the polymer under gamma irradiation is pronounced, only 18 e.v. being required per main-chain scission.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1960.070041116
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Assay of polyethylene oxidizability by lead peroxide ignitionA portion of this paper was presented before the Division of Polymer Chemistry, American Chemical Society, at the 13 1st Meeting, Miami, Florida, April 1957. (1963)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 7 (1963), S. 735-752 
    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: Standardized mixtures of powdered polyethylenes and lead peroxide constitute redox systems that ignite upon the surface of a hot plate after a time interval that is inversely related to temperature and to the oxidizability of the resin. The influence of antioxidants and of oxidation accelerators upon the lead peroxide ignition is identical with that upon the reaction of polyethylenes with oxygen gas at elevated temperatures. Methyl branching also has an identical effect on both reactions. Hence, plots of ignition time versus ignition temperature serve to characterize the oxidative reactivity of polyethylene resins. This solid-solid redox system is shown to have long shelf stability at room temperature, not to be subject to premature ignition induced by the presence of more easily oxidized contaminants, and to suffer the effect of carbon black filler by showing a more sluggish reactivity. The lead peroxide ignition test serves to distinguish among polyethylenes. It can be used to assay the antioxidative proclivities of antioxidants. It can be substituted for electrical dissipation factor measurements in following the hot mill oxidation of polyethylenes. Since this test differentiates among polyethylenes having identical melt indices, lead peroxide ignition time values can also provide a useful specification parameter in describing polyethylene resins.
    Additional Material: 15 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1963.070070228
    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...