ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
Collection
Publisher
Years
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 164 (1988), S. 45-58 
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Es wurden Mischungen von Verdünnungsmitteln verwendet, um poröse Perlen mit guten Charakteristiken zu erhalten. So wurde der Einfluß der δ-Parameter der beiden für die Mischung verwendeten Verdünnungsmittel auf die Makroporositätskennwerte untersucht.Der Einfluß der Mischungen von 2-Ethyl-hexylalkohol/Polystyrol (M̄w = 172000), 2-Ethyl-hexylalkohol/Toluol und Benzin (Sdp. 110 - 125°C)/Polystyrol auf die Charakteristiken der makroporösen Styrol-Divinylbenzol-Copolymeren wurde eingehend untersucht. Man stellte fest, daß die spezifischen Oberflächen oder die Porositäten der makroporösen Copolymeren sehr empfindlich gegen die Änderungen der δ-Parameterwerte und der Zusammensetzung der Monomeren sind.
    Notes: In order to prepare porous beads with good characteristics mixtures of diluents were used. The influence of the δ-parameter values of the two diluents was investigated which constitute the mixture of diluents on the macroporous features.The influence of the mixtures of 2-ethyl hexyl alcohol/polystyrene (M̄w = 172000), 2-ethyl hexyl alcohol/toluene, and gasoline (bp 110-125°C)/polystyrene on the styrene-divinylbenzene macroporous copolymer features was investigated. It was found that the specific surface areas or the porosities of the macroporous copolymers were very sensitive to the modifications of the δ-parameter values and the monomer composition.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Chemistry Edition 13 (1975), S. 2259-2268 
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Pyrolysis, in combination with gas-chromatography technique, was used in the determination of the structure and study of the thermal degradation mechanism of the condensation polymers obtained by Friedel-Crafts reactions of poly(vinyl chloride) with benzene, toluene, and naphthalene. The separation of the pyrolysis products was made using a column packed with chromosorb W (80-100 mesh) coated with 15% silicone SE-52. The identification of the pyrolysis products resulted as a consequence of the thermal decomposition of condensation polymers and their semiquantitative estimation led to the final conclusion that the initial normal chlorine substitution in the macromolecular chain of poly(vinyl chloride) is followed by an important intramolecular cyclization reaction yielding 1,3-methyleneindan units.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...