Library

feed icon rss

Your email was sent successfully. Check your inbox.

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

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 27 (1989), S. 1065-1070 
    ISSN: 0887-624X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The template polymerization of acrylonitrile (AN) along with atactic-poly(vinyl acetate) of Mv (47,090), at 60°C for 120 min in dimethyl formamide (DMF) has been studied dilatometrically to study the effects of template, monomer, and initiator (benzoyl peroxide) concentration upon kinetics. Viscometric measurements showed that complexation between at-PVAc and PAN was maximum when template/polymer ratio was 1:1 and time required for complete complexation was 15 min. The overall energy of activation was 57.76 and 77.01 kJ/mol in the presence and absence of, PVAc, respectively. The overall system follows mechanism I, i.e., the monomer molecules get adsorbed on the surface of the template macromolecules and then propagation proceeds.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Acta Polymerica 39 (1988), S. 679-682 
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Kinetik und Mechanismus der radikalischen Polymerisation von Vinylacetat in Dimethylformamid mit syndiotaktischem Poly(methylmethacrylat) als polymerer Matrix wurden untersucht. Die gemessenen Reaktionsgeschwindigkeiten weisen auf maximale Komplexbildung zwischen der Matrix und Poly(vinylacetat) beim Verhältnis Matrix: Polymer von 1 : 1 hin. Die Molekülmasse des Tochterpolymers liegt sehr nahe bei der des Matrixpolymers. Die Reaktionsordnung in bezug auf Matrix, Monomer und Initiator beträgt 0,40, 1,10 bzw. 0,44.
    Notes: The kinetics and mechanism of radical polymerization of vinyl acetate in dimethyl formamide with syndiotactic poly(methyl methacrylate) as a polymer template was investigated. The reaction rates showed that complexation between the template and poly(vinyl acetate) was maximum when the template: polymer ratio was 1 : 1. The molecular weight of the daughter polymer was very close to that of the template. The order of reaction with respect to template, monomer, and initiator was 0.40, 1.10, and 0.44, respectively.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...