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  • 1
    Electronic Resource
    Electronic Resource
    Resacetophenone oxime-formaldehyde resin and its metal chelates. III (1982)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Chemistry Edition 20 (1982), S. 205-212 
    Details
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: In this paper the synthesis and properties of resacetophenone oxime-formaldehyde resin are described. The number-average molecular weights of the resin determined by vapor-pressure osmometry and nonaqueous conductometric titration are 2200 ± 10% and 2500 g/mol, respectively. Cu(II), Ni(II), and Co(II) chelates of the resin were prepared. Elemental analysis of the chelates indicates a metal to ligand ratio of 1:2. The diffuse reflectance spectra and magnetic moments of Ni(II) and Co(II) chelates show tetrahedral structure, whereas Cu(II) chelate shows a square planar structure. Infrared spectral studies show that the metals are coordinated through the nitrogen of the oximino group and oxygen of the phenolic group. The presence of methylene bridges is also indicated by IR spectral studies. The thermal behavior of the resin and its metal chelates are also discussed.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1982.170200121
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Poly-Schiff bases. I. Preparation of poly-Schiff bases from 4,4′-diacetyl diphenyl ether (DDE) with various diamines (1982)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Chemistry Edition 20 (1982), S. 1985-1992 
    Details
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Thermally stable and semiconducting poly-Schiff bases are synthesized by condensing 4,4′-diacetyl diphenyl ether with o-, m-, and p-phenylene diamines, benzidine, and ethylene diamine under different experimental conditions. These bases are insoluble in common organic solvents. They are characterized by infrared (IR) and viscosity measurements, thermal analysis, and the study of electricel properties at various temperatures. Variation of electrical conductivity σ with temperature followed the empirical relation σ = σ0e-E*/kT.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1982.170200802
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Free-radical copolymerizations of N-arylmaleimides. II (1983)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Chemistry Edition 21 (1983), S. 3027-3032 
    Details
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Free-radical copolymerization of methyl acrylate (MA) with N-p-chlorophenylmaleimide (NPCMI) and N-p-bromophenylmaleimide (NPBMI) initiated by AIBN in cyclohexanone solution at 75°C was studied. The copolymer composition has been determined from the nitrogen content and NMR spectra of the copolymers. The reactivity ratios have been calculated by ML, FR, KT, and JJ methods. Q and e values of NPCMI and NPBMI have also been calculated by the Alfrey-Price Q-e scheme.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1983.170211017
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    Paper (German National Licenses)
    Fulltext
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