Transition metal complexes of polymeric Schiff bases as catalyst precursors for the polymerization of ethylene
✍ Scribed by Marcus Seitz; Helmut G. Alt
- Publisher
- Elsevier Science
- Year
- 2006
- Tongue
- English
- Weight
- 246 KB
- Volume
- 257
- Category
- Article
- ISSN
- 1381-1169
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## Abstract Summary: Facile and effective immobilization of late‐transition metal catalysts, 2,3‐bis‐(2,6‐diisopropylphenyl)butane diimine nickel(ii) dibromide (A) and 2,6‐bis‐[1‐(2,4,6‐trimethylphenylimino)ethyl]pyridine iron(ii) dichloride (B), for ethylene polymerization has been achieved, using
X-ray photoelectron spectroscopy (XPS) has been applied to the study of a series of metaliocene catalysts, containing Zr, Ti or Hf. for the polymerization of ethylene. Surface atomic compositions, binding energies and valence band (VB) spectra have been measured. Surface compositions were found to b