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  • Chemistry  (2)
  • Wiley-Blackwell  (2)
  • Blackwell Publishing Ltd
  • 1990-1994  (2)
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  • Wiley-Blackwell  (2)
  • Blackwell Publishing Ltd
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Year
  • 1
    Electronic Resource
    Electronic Resource
    Monofunctional polydimethylsiloxane oligomers for graft copolymerisation (1994)
    Weinheim : Wiley-Blackwell
    Macromolecular Chemistry and Physics 195 (1994), S. 2965-2979 
    Details
    ISSN: 1022-1352
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Well defined, narrow molecular weight distribution polydimethylsiloxane (PDMS) oligomers containing single, terminal, reactive end groups were synthesised by the anionic polymerisation of hexamethylcyclotrisiloxane (D3). A variety of functionalities were obtained by termination with an appropriate silyl chloride end blocker, e.g. styryl, allyl, silyl chloride, silane, hexenyl etc. Certain monomeric end blockers were also synthesised where necessary. The resulting oligomers were subjected to detailed characterisation using 1H NMR, gel permeation chromatography (GPC), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and IR spectroscopy.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1994.021950823
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  • 2
    Electronic Resource
    Electronic Resource
    Solid state NMR study of the polymerisation of poly(ether sulphone) (1994)
    New York, NY [u.a.] : Wiley-Blackwell
    Polymer International 33 (1994), S. 335-339 
    Details
    ISSN: 0959-8103
    Keywords: poly(ether sulphones) ; PES ; NMR ; CPMAS ; polymerisation ; 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 synthesis of poly(ether sulphone) using the ‘carbonate’ route based on the reaction of 4,4′-dihydroxydiphenylsulphone, 4,4-dichlorodiphenylsulphone and potassium carbonate dispersed in diphenylsulphone has been studied by 13C CPMAS NMR spectroscopy. In the initial reaction the half potassium salt of 4,4′-dihydroxydiphenylsulphone is formed. No evidence for a stable full salt was found at any time during the polymerisation cycle and no appreciable oligomer formation took place before the polymerisation itself took place.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pi.1994.210330314
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    Paper (German National Licenses)
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