Long chain branching in polyethylene from the phillips chromium catalyst

Polymer Reaction Engineering

Volumn 11, Issue 2, 2003, Pages 101-132

  McDaniel, M P ^a,b   Rohlfing, D C ^a   Benham, E A ^a  

^a PHILIPS RESEARCH LABORATORIES   (Netherlands)

^b Phillips Research Center   (United States)

Author keywords

Chromium oxide; Chromium polymerization catalyst; Ethylene polymerization; Ethylene polymerization catalyst; Long chain branching; Phillips chromium catalyst; Phillips polymerization catalyst; Polyethylene; Polymerization catalyst

Indexed keywords

CATALYSTS; MOLECULAR WEIGHT; POLYMERIZATION; RHEOLOGY; VISCOELASTICITY;

LONG CHAIN BRANCHING (LCB);

HIGH DENSITY POLYETHYLENES;

EID: 0037646019     PISSN: 10543414     EISSN: None     Source Type: Journal    
DOI: 10.1081/PRE-120021071     Document Type: Article

References (14)

1. Arnett, R. L., Thomas, C. P. (1980). Zero-shear viscosity of some ethyl branched paraffinic model polymers. J. Phys. Chem. 84:649.
2. Bird, R. B., Armstrong, R. C., Hassager, O. (1987). Dynamics of polymeric liquids. In: Fluid Mechanics, vol. 1. New York: John Wiley & Sons.
3. Fetters, J., Lohse, D. J., Colby, R. H. (1996). In: Mark, J. E., ed. Physical Properties of Polymers Handbook. New York: AIP Press, p. 335.
4. Gates, D. P., Svejda, S. A., Onate, E., Killian, C. M., Johnson, L. K., White, P. S., Brookhart, M. (2000). Synthesis of branched polyethylene using (R-diimine)nickel(II) catalysts: influence of temperature, ethylene pressure, and ligand structure on polymer properties. Macromolecules 33: 2320-2334.
5. Hogan, J. P., Levett, C. T., Werkman, R. T. (1967). Melt elasticity in linear PE containing long branches. SPE J. 23(11):87.
6. Hogan, J. P. (1970). Ethylene polymerization catalysis over chromium oxide. J. Polym. Sci., A-1, 8:2637.
7. Hogan, J. P. (1983). Chapter 6 in applied industrial catalysis. In: Leach. B. E. ed. New York: NY: Academic, p. 149.
8. Janzen, J., Colby, R. H. (1999). Diagnosing long-chain branching in polyethylenes. J. Mol. Struct. 485-486:569-584.
9. McDaniel, M. P. (1982). The state of Cr(VI) on the Phillips polymerization catalyst, IV. saturation coverage. J. Catal. 76:37.
10. McDaniel, M. P. (1985). Ethylene polymerization over chromium oxide catalyst. Adv. Catal. 33:47-98.
11. McDaniel, M. P., Dreiling, M. J. (1983). The activation of the Phillips polymerization catalyst, III. promotion by titania. J. Catal. 82:118.
12. McDaniel, M. P., Martin, S. J. (1991). Poisoning studies on Cr/Silica: II. carbon monoxide. J. Phys. Chem. 95:3289.
13. Reinking, M. K., Orf, G., McFaddin, D. J. (1998). Novel mechanism for the formation of long-chain branching in polyethylene. J. Polym. Sci., A, Polym. Chem. 36:2889.
14. Unpublished internal company reports at Phillips Petroleum Company.