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  • Polymer and Materials Science  (45)
  • Computational Chemistry and Molecular Modeling  (1)
  • 2020-2022
  • 1970-1974  (46)
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Year
  • 1
    Electronic Resource
    Electronic Resource
    A simplified proof of a theorem about group representations (1972)
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 6 (1972), S. 383-386 
    Details
    ISSN: 0020-7608
    Keywords: Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: It is a standard theorem of group representation theory that the dimension of an irreducible representation is a divisor of the order of the group. This paper gives a new, relatively simple proof, intended to make the theorem understandable to readers unfamiliar with algebraic integers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/qua.560060216
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  • 2
    Electronic Resource
    Electronic Resource
    Some reaction variables in the aqueous solution synthesis of titanium polythioethers (1973)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 164 (1973), S. 87-94 
    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: Titanhaltige Polythioäther der folgenden Struktur wurden aus Cp2TiCl2 und Dithiolen durch Kondensation in Lösung hergestellt. Dabei wurde der Einfluß der folgenden Reaktionsvariablen untersucht: des Molverhältnisses der Reaktanten, ihrer Konzentration, der Rührzeit, des Volumens der Lösung. Das Maximum der Ausbeute wird bei einem Molverhältnis Cp2TiCl2:Dithiol:Base von 1:1:2 beobachtet.
    Notes: Titanium polythioethers of the form below were prepared from Cp2TiCl2 and dithiols by the solution method. The following reaction variables were studied and reported on: molar ratios of the base, Cp2TiCl2 and dithiols and concentration of the reactants, stirring time and volume of the aqueous phases.Polymer yield seeks a maximum around a molar ratio of Cp2TiCl2:dithiol:base of 1:1:2.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1973.021640109
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  • 3
    Electronic Resource
    Electronic Resource
    Comparative synthesis of Hf, Zr, and Ti polyesters by interfacial and solution techniquesPresented at the 162nd Amer. Chem. Soc. Meeting in Washington, D.C. in Sept., 1971. (1973)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 166 (1973), S. 31-37 
    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: Polyester mit Hf, Zr und Ti in der Hauptkette wurden durch Grenzflächenpolykondensation und durch Polykondensation in homogener Lösung dargestellt. Bei Variation von M steigt die Ausbeute in der Reihenfolge Hf 〉 Zr 〉 Ti.
    Notes: The comparative synthesis of Hf, Zr, and Ti polyesters by interfacial and solution systems is presented. Yield increases in the order Hf 〉 Zr 〉 Ti.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1973.021660104
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  • 4
    Electronic Resource
    Electronic Resource
    Synthesis of organometallic polymers by the interfacial technique. XXVI. Synthesis of poly[bis(oxycarbonylcyclopentadienyl)-cobalt(III)(dicyclopentadienyltitan(IV)) hexafluorophosphate] (1973)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 166 (1973), S. 23-29 
    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: Durch Grenzflächenpolykondensation in Nitrobenzol/Wasser wurde Poly[bis(oxycarbonylcyclopentadienyl)kobalt (III) (dicyclopentadienyltitan (IV))hexafluorophosphat] (III) aus dem Na-Salz von 1,1-Dicarboxykobalticiniumhexafluorophosphat (I) und Dicyclopentadienyltitandihexafluorophosphat (II) dargestellt. Mit Hilfe der Differentialthermoanalyse und der thermogravimetrischen Analyse wurden die thermischen Eigenschaften des Produktes III untersucht. Dabei erwies sich die thermische Stabilität in Stickstoff höher als in Luft, in der die Produkte einen thermisch-oxidativen Abbau erleiden. Die Produkte wiesen eine relativ hohe thermische Stabilität auf. Das Hexafluorophosphat-Ion konnte in geeigneten wäßrigen Salz-Lösungen ausgetauscht werden, wobei lösliche Produkte entstanden.
    Notes: Poly[bis(oxycarbonylcyclopentadienyl)cobalt (III) (dicyclopentadienyltitan (IV)) hexafluorophosphate] (III) was synthesized from the disodium salt of 1,1-dicarboxycobalticinium hexafluorophosphate (I) and dicyclopentadienyltitanium dihexafluorophosphate (II) in nitrobenzene/water using the interfacial technique. Thermal properties of the products III were investigated employing differential scanning calorimetry and thermogravimetric analysis. The thermal stability in nitrogen was found to be generally higher than in air, in which the products undergo thermal oxidative degradation. The products exhibit relatively good thermal stability. They undergo exchange of the hexafluorophosphate ion in suitable aqueous salt solutions to give soluble products.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1973.021660103
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  • 5
    Electronic Resource
    Electronic Resource
    Production of organometallic polymers by interfacial technique, 33.Part 32, cf. J. Macromol. Sci.-Chem., A-8, 1009 (1974).. Synthesis of oligomeric cobalticinium containing dialkylstannanediyl polyestersPresented at the 166th American Chemical Society Meeting in Chicago, USA. (1974)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 175 (1974), S. 3089-3096 
    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: Durch Grenzflächenpolykondensation von Dialkylzinnhalogeniden mit dem Alkalisalz des 1,1′-Dicarboxykobalticiniumhexafluorphosphats (2) im System Tetrachlorkohlenstoff/ Wasser, wurden Oligo(oxycarbony1-l,1 ′-cobalticendiyl carbonyloxydialkyl (oder diary1)-stannandiylhexafluorphosphate) (3) erhalten.Bei Variation des Halogens und des Alkyl- oder Aryl-Restes steigt die Ausbeute inder Reihenfolge I≈Br 〉 Cl and C6H5— 〉 H2C=CH— 〉(CH3)3CH— 〉 C2H5— 〉H3C(CH2)7 — ≈ C6H5CH2— 〉 CH3Das Hexafluorphosphat-Ion konnte in geeigneten waBrigen Salz-Losungen ausge-tauscht werden, wobei losliche Produkte entstanden.
    Notes: Oligo(oxycarbonyl-1,1′-cobalticendiylcarbonyloxydialkyl (or diaryl)stannanediyl hexafluorophosphate)s (3) were synthesized by condensation of alkali salts of 1,1′-dicarboxycobalticinium hexafluorophosphate (2) with dialkyl (or diaryl) tin dihalides in CCl4/water using the interfacial technique.Variation of the halide and of the alkyl or aryl group causes an increase of the yield in the order I≈Br 〉 Cl and C6H5— 〉 H2C=CH— 〉(CH3)3CH— 〉 C2H5— 〉H3C(CH2)7 — ≈ C6H5CH2— 〉 CH3The polymeric product (3) undergoes an exchange of the hexafluoro phosphate ion in a suitable aqueous salt solution to give soluble products.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1974.021751105
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  • 6
    Electronic Resource
    Electronic Resource
    Syntheses of bis(η-cyclopentadienyl)titanio derivatives of poly(amide oxime)sPresented at the 166th American Chemical Society Meeting in Chicago.Portions taken from the thesis of R. A. F. (1973). (1974)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 175 (1974), S. 2307-2316 
    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: Bis(η-cyclopentadienyl)titan-Derivate von Polyamidoximen (3) wurden aus (Cp)2TiCl2 und verschiedenen Amidoximen durch Grenzflächenpolykondensation oder durch Kondensation in Lösung hergestellt. Es wurde gefunden, daß die Reaktion schnell verläuft, gewöhnlich innerhalb weniger als 90s. Sie nimmt mit steigender Rührgeschwindigkeit zu im Bereich von 8000-24 000rpm, wobei die Ausbeute oberhalb von 12 000rpm konstant bleibt.
    Notes: Bis(η-cyclopentadienyl)titanio derivatives of poly(amide oxime)s (3) were synthesized via the condensation of amide oximes (1a-g) with (Cp)2TiCl2 (2) utilizing both the interfacial and solution techniques. The reaction was found to be rapid, occuring in generally less than 90s and to increase with the stirring rate in the region of 8000 to 24 000rpm but with yield remaining constant above 12 000rpm.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1974.021750807
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  • 7
    Electronic Resource
    Electronic Resource
    Synthesis of oligomeric zirconium polythioethers (1974)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 18 (1974), S. 53-59 
    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: Synthesis of zirconium oligomeric polythioethers was effected using aqueous solution and interfacial techniques: The products are insoluble in all tried solvents and possess Zr—OH endgroups but no detectable quantities of R—SH, Zr—Cl, or Zr—N—Et-endgroups.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1974.070180104
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  • 8
    Electronic Resource
    Electronic Resource
    Production of organometallic polymers by the interfacial technique. XXV. Synthesis of oligomeric silylhydrazines (1972)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 160 (1972), S. 251-258 
    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: Durch Grenzflächenpolykondensation von Silanen mit Hydrazinen wurden Polymere der Struktur I hergestellt. Dabei kam ein modifiziertes wasserfreies Lösungsmittelsystem aus Acetonitril und Kohlenwasserstoffen zur Anwendung.Die Produkte haben nur niedrige Molekulargewichte. Eine Zuordnung der IR-Banden wird gegeben.
    Notes: Polymers of the form below were prepared by the interfacial method via the condensation of silanes with hydrazines employing a modified nonaqueous system using acetonitrile and liquid hydrocarbons. IR frequency band assignments are given. The products are oligomeric.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1972.021600119
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  • 9
    Electronic Resource
    Electronic Resource
    Synthesis of poly-O-acyl-amideoximes containing group IV A metals from poly(acrylonitrile) (1972)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 152 (1972), S. 43-47 
    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: Durch Umsetzung von Polyacrylnitril mit Hydroxylamin und dann mit Organometallhalogeniden von Sn, Ge oder Si wurden modifizierte Polymere erhalten, die wahrscheinlich folgende Struktur aufweisen: Mit Cl2MR2 entstehen vernetzte Produkte. Die neuen Polymeren werden kurz charakterisiert.
    Notes: Poly(acrylonitrile) was modified to give products of the form below via reaction with hydroxylamine and subsequently with group IV organometallic reactants: The products obtained with Cl2MR2 are crosslinked. Properties of the new polymers are briefly characterized.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1972.021520106
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  • 10
    Electronic Resource
    Electronic Resource
    Synthesis and thermal characterization of cross-linked Ti, Zr and Hf polyesters from poly(acrylic acid) (1972)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 152 (1972), S. 49-54 
    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: Die Grenzflächen- und Lösungspolykondensation von Polyacrylsäure mit verschiedenen Dicyclopentadiendichloriden von Elementen der IV. Nebengruppe wird beschrieben. Die Polyester sind vernetzt und haben wahrscheinlich die folgende Struktur: Die thermischen Eigenschaften der Polyester wurden durch Differential-Thermoanalyse und thermogravimetrische Analyse untersucht.
    Notes: The synthesis of cross-linked polyesters from the condensation of poly(acrylic acid) with Group IV B dicyclopentadiene dichlorides via the interfacial and solution techniques is described. The polyesters are believed to contain the following repeating units: Thermal properties of the polyesters were studied by Differential Scanning Calorimetry and Thermal Gravimetric Analysis.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1972.021520107
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