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  • 1
    Electronic Resource
    Electronic Resource
    Thermoanalytical investigation of grafted polypropylene with fixed flame retardant compounds
    Amsterdam : Elsevier
    Thermochimica Acta 93 (1985), S. 171-174 
    Details
    ISSN: 0040-6031
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0040-6031(85)85044-9
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Kinetik der radikalischen Living-Polymerisation von Styrol mit makromolekularen Initiatoren (1978)
    Springer
    Colloid & polymer science 256 (1978), S. 714-714 
    Details
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01784499
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Redox-Polymerisations-systeme zur Herstellung des gepfropften Polypropylens. 1. Mitt.: Pfropfen des Polypropylens mit Styrol in Gegenwart der Triäthylentetraminmetallehelate (1975)
    Springer
    Colloid & polymer science 253 (1975), S. 176-176 
    Details
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01775734
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  • 4
    Electronic Resource
    Electronic Resource
    Redox-Polymerisationssysteme zur Herstellung des gepfropften Polypropylens. 2. Mitt.: Pfropfen des Polypropylens mit Vinyl- bzw. Dienmonomeren in Gegenwart der Fe2+-Chelate (1975)
    Springer
    Colloid & polymer science 253 (1975), S. 177-177 
    Details
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01775738
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Catalyzed reactions of epoxide groups on the solid polymer phase (1989)
    Springer
    Reaction kinetics and catalysis letters 39 (1989), S. 235-241 
    Details
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Исследована каталитическая реакция эпоксидов, привитых к изотактическому полипропиленовому порошку, с кислотами и аминами в присутствии органических жидкостей. Особеннностью этой реакции является то, что, вследствие нахождения эпоксида в гетерогенной фазе, необходимо использовать относительно высокие концентрации катализатора. Приводят константы скоростей реакций модельных соединений, а также соединений со специальным эффектом за счет эпоксидных групп.
    Notes: Abstract The catalytic reaction of epoxide bonded on a grafted isotactic polypropylene powder with acids and amines in the presence of organic liquids is studied. The speciality of this reaction is that relatively high catalyst concentrations are used, due to the presence of epoxide in the heterogeneous phase. Rate constants of bonding of model compounds, and also compounds with special effect by means of epoxide groups are quoted.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02071333
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  • 6
    Electronic Resource
    Electronic Resource
    Epoxy groups on grafted polypropylene. I. Reaction with acids (1989)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 171 (1989), S. 141-152 
    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: Die Epoxidgruppen eines Copolymeren, das man durch Pfropfung von 2,3-Epoxypropylmethacrylat auf isotaktisches Polypropylen erhält, wurden mit niedermolekularen Carbonsäuren umgesetzt. Die Reaktion verläuft in Gegenwart von organischen Lösungsmitteln heterogen und kann durch tertiäre Amine beschleunigt werden. Die Geschwindigkeitskonstanten der Reaktion werden mit der Dissoziationskonstanten der gebundenen Säure und mit der Art des verwendeten Beschleunigers korreliert. Die Reaktivität der polymergebundenen Epoxidgruppen ändert sich im Vergleich mit Reaktionen unter homogenen Bedingungen nicht.
    Notes: Epoxy groups on isotactic polypropylene, to which 2,3-epoxypropylmethacrylate was grafted, were reacted with low molecular carboxylic acids. The reaction proceeds under heterogeneous conditions in the presence of organic solvents and it may be catalysed by tertiary amines. The rate constants of this reaction are correlated with the dissociation constant of the bonded acid and with the character of the used catalyst. The reactivity of polymer-bonded epoxy groups is not changed when comparing with reactions performed under homogeneous conditions.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1989.051710111
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  • 7
    Electronic Resource
    Electronic Resource
    Epoxy groups on grafted polypropylene. II. Reaction with amines (1989)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 171 (1989), S. 153-164 
    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: Die Epoxidgruppen eines Copolymeren, das man durch Pfropfung von 2,3-Epoxypropylmethacrylat auf isotaktisches Polypropylen erhält, wurden mit niedermolekularen sekundären Aminen umgesetzt. Hohe Reaktionsgeschwindigkeiten zeigen heterocyclische Amine. Die Reaktion weniger stark basischer Amine wird in Gegenwart von sauren Katalysatoren beschleunigt. Der Mechanismus des Einflusses des Amin-Säure-Paares auf die Epoxidgruppen auf der Oberfläche eines festen Polymeren unter heterogenen Bedingungen wird diskutiert.
    Notes: Epoxy groups attached to isotactic polypropylene in form of 2,3-epoxypropylmethacrylate grafts were reacted with low molecular secondary amines. Secondary heterocyclic amines exhibit high reaction rates in this process. The bonding of less basic amines is accelerated in the presence of acid catalysts. The mechanism is discussed of amine-acid couple influence upon the epoxy group present in heterogeneous system on the surface of solid polymer.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1989.051710112
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  • 8
    Electronic Resource
    Electronic Resource
    Die Veresterung von an Polypropylen gebundener Polyacrylsäure mit einem Epoxid (1985)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 36 (1985), S. 252-255 
    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: Characteristic constants for the esterification of carboxyl groups of isotactic polypropylene grafted with acrylic acid using phenylglycidylether as a model compound are determined. Difference of this reaction on solid phase from similar reactions in homogeneous conditions are discussed.
    Notes: Charakteristische Konstanten für die Veresterung der Carboxylgruppen der auf isotaktisches Polypropylen gepfropften Acrylsäure mit Phenylglycidylether als Modellsubstanz wurden bestimmt. Die Unterschiede dieser an der festen Phase durchgeführten Reaktion zu ähnlichen Reaktionen unter homogenen Bedingungen werden diskutiert.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1985.010360504
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  • 9
    Electronic Resource
    Electronic Resource
    Bindung von niedermolekularen Stoffen an chlorhydringruppenhaltiges Polypropylen (1988)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 39 (1988), S. 642-647 
    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: Amino model compounds and compounds with special effects, respectively, were bonded onto isotactic powdered polypropylene grafted with acrylic acid, in which the carboxylic groups were esterified by epichlorohydrin. For the reaction, which proceeds in heterogeneous medium, the conditions for maximum exchange of chlorine in the polymer at the substitution by amino groups were investigated.
    Notes: Aminogruppenhaltige Modellsubstanzen bzw. Verbindungen mit speziellen Wirkungen wurden an isotaktisches, mit Acrylsäure gepfropftes Polypropylen, bei dem die Carboxylgruppen durch Epichlorhydrin verestert wurden, angelagert. Für die in heterogener Phase verlaufenden Reaktionen wurden die Bedingungen für maximalen Chloraustausch bei Umsetzung mit Aminogruppen untersucht.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1988.010391109
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  • 10
    Electronic Resource
    Electronic Resource
    Copolymers of styrene and maleic anhydride formed in the presence of a heterogeneous initiator (1990)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 41 (1990), S. 293-297 
    Details
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The copolymerization of styrene with maleic anhydride initiated with hydroperoxides of isotactic powdered polypropylene in the presence of an activator and a nonionic emulsifier was studied. In the investigated system the initiator forms a solid phase, which could be separated from the emulsion during the styrene polymerization. After addition of maleic anhydride solved in a polar solvent to the polymerizing styrene a block copolymer containing a pure styrene block and a styrene/maleic anhydride block is formed. The copolymer composition can be influenced by the polymerization time of the first polymerizing monomer. The obtained block copolymers are characterized.Die Copolymerisation von Styren mit Maleinsäureanhydrid bei Initiierung durch Hydroperoxide von isotaktischem, pulverförmigen Polypropylen wurde in Gegenwart eines Aktivators und eines nichtionischen Emulgators untersucht. In dem System liegt der Initiator in fester Phase vor, die während der Polymerisation des Styrens von der Emulsion abgetrennt werden kann. Nach Zugabe des Maleinsäureanhydrids in einem polaren Lösungsmittel zu dem polymerisierenden Styren wird ein Blockcopolymer gebildet, das einen reinen Styrenblock und einen Styren-MaleinsäureanhydridBlock enthält. Die Zusammensetzung des Copolymers kann durch Variation der Polymerisationszeit des zuerst polymerisierten Monomers beeinflußt werden. Die erhaltenen Blockcopolymeren werden charakterisiert.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1990.010410507
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