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  • 1
    Electronic Resource
    Electronic Resource
    Bis(1,8-naphthylimides) and bis(1′,8′-naphthoylene-1,2-benzimidazoles) based on new bis(naphthalic anhydrides) (1991)
    Springer
    Chemistry of heterocyclic compounds 27 (1991), S. 517-519 
    Details
    ISSN: 1573-8353
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The reaction of bis(naphthalic anhydrides) with aniline and o-phenylenediamine under conditions of hightemperature cyclocondensation in m-cresol in the presence of a catalyst (benzoic acid) gives bis(1,8-naphthylimides) and bis(1′,8′-naphthoylene-1,2-benzimidazoles) which model the elementary units of polyimides and polynaphthoylenebenzimidazoles, respectively.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00473997
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  • 2
    Electronic Resource
    Electronic Resource
    Thermally stable polymers based on bis-acenaphthyls (1990)
    Springer
    Journal of thermal analysis and calorimetry 36 (1990), S. 1685-1698 
    Details
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Mittels dynamischen und isothermischen TG-Methoden wurde die thermische StabilitÄt von Poly-bis-acenaphthylenen untersucht. Jeder dieser Polymere zeigt eine hohe thermische StabilitÄt; lÄngere DicarbonsÄuren führen zu einer Verbesserung der thermischen Eigenschaften der Polymere.
    Notes: Abstract The thermal stability of poly-bis-acenaphthylenyls was studied by dynamic and isothermal TG methods. All these polymers demonstrate high thermal stabilities; increasing length of the dicarboxylic acid leads to an enhancement of the thermal properties of the polymers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01913415
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    New approaches to improve the thermal stability of polyquinoxalines (1988)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 39 (1988), S. 455-459 
    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: Mit dem Ziel der Erhöhung der Wärmebeständigkeit von Polychinoxalinen wurde die Synthese von Poly(phenylchinoxalin-co-naphthoylenbenzimidazolen) durch katalytische Copolykondensation von Bis(o-phenylendiaminen) mit Bis(α-diketonen) und Bis(naphthalinsäureanhydriden) sowie einer Reihe von Phenylchinoxalin-Verbindungen mit Acenaphthylen-Gruppen durchgeführt. Durch Einwirkung höherer Temperaturen wurden daraus vernetzte, thermisch stabile Strukturen erhalten. Der Einfluß des Verhältnisses der Phenylchinoxalin-zu den Napthoylbenzimidazolringen auf die Eigenschaften der Copolymere wurde untersucht.
    Notes: In order to improve the thermal stability of poyquinoxalines, the synthesis of poly(phenylquinoxaline-co-naphthoy-lenebenzimidazoles) through catalytic copolycondensation of bis(o-phenylene diamines) with bis(α-diketones) and bis(naphthalic anhydrides) and of a number of phenylquinoxaline compounds with acenaphthylene groups capable of thermal hardening to give cross-linked thermally stable structures has been developed. The influence of the ratio of phenylquinoxaline and naphthoylene benzimidazole cycles on the fundamental properties of the copolymers has been studied.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1988.010390817
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  • 4
    Electronic Resource
    Electronic Resource
    Novel bis(napthalic anhydrides) and polyheteroarylenes on their basis (1988)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 39 (1988), S. 460-464 
    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: Eine Reihe neuer Bis(naphthalincarbonsäureanhydride) wurden durch Umsatz von Acenaphthen mit Dichloranhydriden von Dicarbonsäuren unter den Bedingungen einer Friedel-Crafts-Reaktion mit Chloral bzw. Bromal und nachfolgender Oxidation der Bis(acenaphthyle) und Anhydridisierung der Tetracarbonsäuren synthetisiert. Aus diesen Anhydriden und Bis(o-phenylendiaminen) erhaltene Poly(naphthoylen-benzoimidazole) vereinen gute thermische Eigenschaften mit Löslichkeit in organischen Lösungsmitteln.
    Notes: A series of novel bis(naphthalic anhydrides) has been prepared through acenapthene interaction with the dichloroanhydrides of dicarboxylic acids under the conditions of the Friedel-Crafts reaction or with chloral and bromal followed by oxidation of bis-acenaphthyls and anhydrization of the tetracarboxylic acids synthesized. Poly(naphthoylene benzoimidazoles) combining advantageous thermal properties and solubility in organic solvents have been obtained through interaction between the synthesized anhydrides and bis(o-phenylene diamines).
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1988.010390818
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  • 5
    Electronic Resource
    Electronic Resource
    Condensation polymers based on acenaphthene derivatives (1991)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 42 (1991), S. 53-63 
    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: Die Reaktionen von Acenaphthen und seinen Derivaten, die zur Synthese verschiedener Klassen von Monomeren, wie Bis(naphthalinsäureanhydriden), Bis(acenaphthochinolinen) und Bis(acenaphthylenen) mit unterschiedlichen Brükengruppen, führen, werden, betrachtel. Die synthetisierten Monomere erwiesen sich als geeignet zur Herstellung von Poly-(naphthalimiden), Poly(naphthoylenbenzimidazolen), Poly(chimoxalinen) und Poly(acenaphthylenen). Diese Polymere weisen sowohl gute thermische Eigenschaften als auch gute Verarbeitbarkeit auf.
    Notes: The reactions involving acenaphthene and its derivaties resulting in the synthesis of various classes of mononmers, namely, bis(naphthalic anhydride)s, bis(acenaphthoquinone)s, bis(acenaphthylene)s, containing various bridging groups, are considered. The synthesized monomers have been shown to be applicable for the preparation of poly-(naphthylimide)s, poly(naphthyoylenebenzimidazole)s, poly(quinoxaline)s, and poly(acenaphthylene)s combining good thermal characteristics and good processibility.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1991.010420202
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  • 6
    Electronic Resource
    Electronic Resource
    New bis(naphthalic anhydride)s with organoelement central groupings and poly(naphthaoylene benzimidazole)s on their basis (1991)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 42 (1991), S. 63-66 
    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: Neue Bis(naphthalsäureanhydride) mit elemntorganischen Diphenylsilyl- und Carborangruppen wurden durch Wechselwirkung von Acenaphthen und Dichloranhydriden der entsprechenden dicarbonsäuren in einer Friedel-Crafts-Reaktion mit nachfolgender Oxidation des Bis(acenaphthyle) und Dehydratisierung der synthetisierten Tetracarbonsäuren erhalten. Die Reaktion der Anhydride mit Bis(o-phenyldiaminen) führte zu Poly(naphthyylenbenzimidazolen), die gute thermische Eigenschaften mit der Löslichkeit in organischen Lösungsmitteln in sich vereinigen und thermoreaktive Eigenschaften aufweisen.
    Notes: New bis(naphthalic anhydride)s with organoelement diphenylsilyl and m-carboranyl groups have been obtained by interaction of acenaphthene dichloroanhydrides of the respective dicarboxylic acids in Friedel-Crafts reaction followed by oxidation of the bis(acenaphthyl)s and anhydridization of the synthesized tetracarboxylic acids. Interaction of the anhydrides and bis(-o-phyenylenediamine)s yielded poly(naphthoylene benzimidazole)s, which combine good thermal characteristics with solubility in organic solvents and possess thermosetting properties.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1991.010420203
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