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  • 1
    Electronic Resource
    Electronic Resource
    Geology of Macdonald Seamount region, Austral Islands: Recent hotspot volcanism in the south Pacific (1989)
    Springer
    Marine geophysical researches 11 (1989), S. 101-112 
    Details
    ISSN: 1573-0581
    Keywords: volcanology ; hotspot ; Pacific ; Macdonald ; petrology ; Austral Islands
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The southeastern extension of the Austral Islands volcanic chain terminates near 29°S, 140°W at the active Macdonald Seamount. The ‘hotspot’ region near Macdonald consists of at least five other volcanic edifices each more than 500 m high, included in an area about 50–100 km in diameter. On the basis of the sea-floor topography, the southeastern limit of the hotspot area is located about 20 km east of the base of Macdonald, where it is defined by the 3950 m isobath. At the edge of the hotspot area, there is a marked deepening of the seafloor from c.3900 m down to 4000–4300 m. The deeper sea-floor is faulted and heavily sedimented. The Macdonald volcano itself stands 3760 m above the surrounding seafloor, and has a basal diameter of 45 km. Its summit in January 1987 was 39 m below sea level, and it seems likely that Macdonald will emerge at the surface in the near future. Recent (March and November 1986) phreatic explosions on Macdonald Seamount erupted fragments of ultramafic and mafic plutonic blocks together with basic lapilli (volcaniclastic sand). The plutonic blocks have been variably altered and metamorphosed, and in some cases show signs of mineralisation (disseminated sulphides). The blocks presumably come from deeper levels in the volcanic system. The volcanics so far dredged from Macdonald consist of olivine and clinopyroxene cumulus-enriched basalts, evolved basalts, and mugearite. On the basis of incompatible element variations, simple crystal fractionation seems to be controlling the chemical evolution of Macdonald magmas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00285661
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  • 2
    Electronic Resource
    Electronic Resource
    Synthese und Polymerisation ungesättigter Benzaldazine (1987)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 329 (1987), S. 433-438 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Synthesis and Polymerization of Unsaturated BenzaldazinesThe preparation of methacrylic and acrylic acid derivatives of isomeric hydroxybenzaldazines and their characterization by u.v.-, i.r.-, 1H and 13C n.m.r. spectroscopy are described. By radical polymerization and copolymerisation with styrene and methyl methacrylate, respectively, crosslinked polymers showing ultraviolet-absorbing properties are obtained.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19873290308
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  • 3
    Electronic Resource
    Electronic Resource
    Fedtke, M.: Reaktionen an Polymeren. 205 S., 51, Abb., 26 Tab., Format 14,5 × 21,5 cm. Leipzig: VEB Deutscher Verlag für Grundstoffindustrie 1985. Leinen 42,- M (1986)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 328 (1986), S. 545-545 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19863280412
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  • 4
    Electronic Resource
    Electronic Resource
    Polymerisation von Vinylverbindungen in Gegenwart von Titan(III)-chlorid (1980)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 322 (1980), S. 963-970 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Polymerization of Vinyl Compounds in the Presence of Titanium(III)ChlorideThe polymerization of styrene, acrylonitrile and some methacrylates initiated by a titanium(III) chloride dichloroacetic acid redox system was studied. The monomer selectivity of the polymerization in the presence of titanium(III) chloride was found to be affected by a reductive termination reaction. Titanium(III) chloride acts as a retarder in the polymerization of styrene initiated by azobisisobutyronitrile (AIBN). The polymerization of polar monomers like acrylonitrile, methyl, ethyl and propyl methacrylate by AIBN is inhibited by titanium(III) chloride.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19803220613
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  • 5
    Electronic Resource
    Electronic Resource
    Vinylpolymerisation mit reduzierenden Übergangsmetallverbindungen. VII. Polymerisation von Methylmethacrylat in Gegenwart von Molybdän(III)-chlorid-Sulfoxid-Systemen (1985)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 327 (1985), S. 595-603 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Vinyl Polymerization Initiated by Reducing Compounds of Transition Metals. VII. Polymerization of Methyl Methacrylate in the Presence of Molybdenum(III) Chloride/Sulfoxide SystemsThe polymerization of methyl methacrylate initiated by the molybdenum(III) chloride/dimethyl sulfoxide redox system was carried out at 70° in 1, 4-dioxane. The rate of polymerization can be described by the equation Rp = k · [MoCl3]0,5 · [DMSO]0,5 · [MMA]1,0. The overall activation energy was estimated to be 36.0 kJ/mol. It was found that diethyl, dipropyl, dibutyl, diphenyl and dibenzyl sulfoxides could also initiate the polymerization of methyl methacrylate in the presence of molybdenum(III) chloride, whereas vanadium(II) chloride, vanadium(III) chloride, titanium(III) chloride and chromium(II) acetate are inactive in combination with sulfoxides.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19853270409
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  • 6
    Electronic Resource
    Electronic Resource
    Synthese von Styrencopolymeren ungesättigter Phosphonsäuren und Phosphonsäureester (1980)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 31 (1980), S. 165-168 
    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: Styrene copolymers of unsaturated phosphonic acids are prepared by radical, or anionic copolymerization of styrene with esters of vinylphosphonic acid, allylphosphonic acid, 4-vinylbenzenephosphonic acid, and 2-(4-vinylphenyl)-ethanephosphonic acid, followed by cleavage of the ester groups.
    Notes: Styrencopolymere ungesättigter Phosphonsäuren werden durch radikalische bzw. anionische Copolymerisation von Styren mit Estern der Vinylphosphonsäure, Allylphosphonsäure, 4-Vinyl-benzenphosphonsäure und 2-(4-Vinylphenyl)ethanphosphonsäure und nachfolgende Abspaltung der Estergruppen hergestellt.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1980.010310304
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  • 7
    Electronic Resource
    Electronic Resource
    Zur Synthese und Charakterisierung von chlorierten und sulfochlorierten ataktischen Polypropylenen (1980)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 31 (1980), S. 111-117 
    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: Chlorinated polypropylenes with a chlorine content between 3 and 72.3% by wt. as well as chlorosulfonated polypropylenes with a chlorine content between 3 and 54.4% by wt. and a sulfur content between 1.2 and 5.9% by wt. are prepared by means of chlorination and chlorosulfonation of atactic polypropylene in solution. The influence of substitution von molecular weight, intrinsic viscosity, glass transition temperature as well as dynamic-mechanical behaviour and thermal short-time behaviour of the polymers is investigated.
    Notes: Durch Chlorierung und Sulfochlorierung von ataktischem Polypropylen in Lösung werden gezielt chlorierte Polypropylene mit 3 bis 72,3 Masse-% Chlor und einem Schwefelgehalt von 1,2 bis 5,9 Masse-% dargestellt. Es wird der Einfluß der Substitution auf die rel. Molekülmasse, Grenzviskosität und Glasübergangstemperatur sowie das dynamisch-mechanische Verhalten und das thermische Kurzzeitverhalten der Polymere untersucht.
    Additional Material: 12 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1980.010310208
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  • 8
    Electronic Resource
    Electronic Resource
    Mangan(IV)-initiierte Pfropfcopolymerisation von Methymethacrylat und anderen Acrylmonomeren auf Stärke und Dextran (1982)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 33 (1982), S. 640-643 
    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: Using the managers(IV)-method methyl methacrylate was grafted onto potato starch and dextran as well as 1-acryloyl-3-methylpyrazole and 1-methacryloyl-3,5-dimethyl-pyrazole onto potato starch. The graft copolymerization of potato starch with methyl methacrylate was investigated with respect to the influences of the acid concentration, the solvent composition, the presence of permanganate, and the gelatinization of starch.
    Notes: Nach der Mangan(IV)-Methode wurden Methylmethacrylat auf Kartoffelsärke und Dextran sowie 1-Acryloyl-3-methyl-pyrazol und 1-Methacryloyl-3,5-dimethyl-pyrazol auf Kartoffelstärke gepfropft. Für die Pfropcopolymerisation von Kartoffelstärke mit Methylmethacrylat wurde der Einfluß der Säurekonzentration, der Lösungsmittelzu sammensetzung, der Anwesenheit von Permanganat und der Gelatinierung der Stärke untersucht.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1982.010331105
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  • 9
    Electronic Resource
    Electronic Resource
    Vinyl polymerization initiated by reducing compounds of transition metals 6. Polymerization of methyl methacrylate in the presence of molybdenum (III) chloridePart 5: Europ. Polymer J., 20 (1984) 501-504. (1984)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 35 (1984), S. 616-617 
    Details
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1984.010350911
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  • 10
    Electronic Resource
    Electronic Resource
    Biocide Polymere. XI. Polymerbindung des Mikrobiocids 3-Methyl-pyrazol an Celluloseträger über modifizierte Kohlensäure-BindungsgruppenTeil X: Acta Polymerica 36 (1985) 185 (1985)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 36 (1985), S. 446-451 
    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: Polymer bound microbiocides are prepared by 4-dimethylaminopyridine catalyzed acylation of cellulose and cellulose dibenzylether with the thio acid chloride obtained from 3-methyl-pyrazole and thiophosgene. The hydrolytic release of the bioactive compound is controlled primarily by the hydrophilicity of the polymer support and the state of swelling and dissolution of the polymer-biocide-combination and its change during hydrolysis.
    Notes: Polymergebundene Mikrobiocide werden durch Acylierung von Cellulose und Cellulosedibenzylether mit dem aus 3-Methyl-pyrazol und Thiophosgen erhältlichen Thiocarbonsäurechlorid unter Katalyse mit 4-Dimethylamino-pyridin hergestellt. Die hydrolytische Wirkstoffreisetzung wird primär über die Hydrophilie der Trägerpolymere sowie den Quellungs- bzw. Lösungszustand der Polymer-Wirkstoff-Kombination und seine Änderung während der Hydrolyse gesteurt.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1985.010360811
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