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  • crystalline-amorphous blend  (1)
  • polytrithiocarbonate  (1)
  • two-phase reaction  (1)
  • 1
    Electronic Resource
    Electronic Resource
    One-step polymerization of polytrithiocarbonate using phase-transfer catalyst (1993)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 31 (1993), S. 1799-1806 
    Details
    ISSN: 0887-624X
    Keywords: polytrithiocarbonate ; sulfur-containing polymer ; phase-transfer catalyst ; trithiocarbonate anion ; two-phase reaction ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A series of aliphatic and aromatic polytrithiocarbonates was prepared using a novel “one-pot” synthesis procedure employing a phase-transfer catalyst. The starting reagents were either an aliphatic or an aromatic dihalide and an excessive amount of carbon disulfide. The effects of the phase-transfer catalyst and reaction conditions on yield were studied. The structure and composition of the polymers and reaction side-products were determined from infrared, ultraviolet, 1H-NMR spectra, and elemental analyses. The polymers were further characterized by viscosity measurement and thermal analysis. © 1993 John Wiley & Sons, Inc.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pola.1993.080310719
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Miscibility of poly(vinylidene fluoride) and potassium salt of poly(methyl methacrylate-ran-methacrylic acid) (1995)
    New York, NY [u.a.] : Wiley-Blackwell
    Polymer International 36 (1995), S. 339-344 
    Details
    ISSN: 0959-8103
    Keywords: crystalline-amorphous blend ; poly(vinylidene fluoride) ; copolymer of methyl methacrylate and potassium salt of methacrylic acid ; thermal analysis ; interaction parameter ; 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: The crystalline-amorphous polymer pair of poly(vinylidene fluoride) and poly(methyl methacrylate) is known to be miscible over a wide composition range. The effects of ionic moieties on the miscibility were studied by replacing the poly(methyl methacrylate) with a series of random copolymers of methyl methacrylate and potassium salt of methacrylic acid. The interaction parameter (χ) for the miscible blends in their molten state was obtained by thermal analysis using a melting-point depression calculation. The parameter decreased to a minimum at c.2% ion content (χ=minus;0.514) and approached a positive value at above 10% ion concentration.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pi.1995.210360406
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    Paper (German National Licenses)
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