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Titolo:
Copolymerization of ethylene and alpha-olefins with combined metallocene catalysts. III. Production of polyolefins with controlled microstructures
Autore:
Kim, LD; Soares, JBP;
Indirizzi:
Univ Waterloo, Polymer Res Inst, Dept Chem Engn, Waterloo, ON N2L 3G1, Canada Univ Waterloo Waterloo ON Canada N2L 3G1 gn, Waterloo, ON N2L 3G1, Canada
Titolo Testata:
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
fascicolo: 9, volume: 38, anno: 2000,
pagine: 1427 - 1432
SICI:
0887-624X(20000501)38:9<1427:COEAAW>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
POLYMERIZATION; ZIRCONOCENE; BEHAVIOR;
Keywords:
metallocene; polyethylene; molecular weight distribution; chemical-composition distribution; control of polymer microstructure; linear low-density polyethylene;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
14
Recensione:
Indirizzi per estratti:
Indirizzo: Soares, JBP Univ Waterloo, Polymer Res Inst, Dept Chem Engn, Waterloo, ON N2L 3G1, Canada Univ Waterloo Waterloo ON Canada N2L 3G1 , ON N2L 3G1, Canada
Citazione:
L.D. Kim e J.B.P. Soares, "Copolymerization of ethylene and alpha-olefins with combined metallocene catalysts. III. Production of polyolefins with controlled microstructures", J POL SC PC, 38(9), 2000, pp. 1427-1432

Abstract

The distributions of the molecular weight (MWD) and chemical composition of polyolefins can be controlled by the combination of two or more metallocenes from the knowledge of the behavior of each individual metallocene. Polyolefins with bimodal MWDs and a higher comonomer content in high molecular weight chains have physical properties suitable for advanced applications such as pipes for gas and water distributions. With conventional Ziegler-Natta catalysts, this type of polymer resin is produced only by tandem reactortechnology in which two or more polymerization reactors are used in series. With combined metallocene catalysts, similar polymer resins can be produced in a single reactor. The versatility of these combined metallocene catalysts is investigated in this article. (C) 2000 John Wiley & Sons, Inc. J Polym Sci A: Polym Chem 38: 1427-1432, 2000.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/09/20 alle ore 10:17:39