Catalytic Polymerization of Ethylene in Emulsion
Macromolecules2001Vol. 34(7), pp. 2022–2026
Citations Over TimeTop 10% of 2001 papers
R. Soula, Christian Novat, A.K. Tomov, Roger Spitz, Jérôme P. Claverie, Xavier Drujon, Jean Malinge, Thierry Saudemont
Abstract
Ethylene polymerization catalyzed by nickel(II) keto−ylide complexes has been performed in water to yield a latex of linear PE. Colloidal stability is highly enhanced by the use of a miniemulsion technique to disperse the catalyst prior contact with the monomer. Latex of typically 200 nm particle diameters and up to 10% solids are generated by this method. The influence of several factors (temperature, pressure, solids) onto the polymerization is studied in detail. The surfactant adsorption isotherms onto these highly crystalline and nonpolar particles are also presented.
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