Highly active Ziegler-Nattta catalyst for propylene polymerization

S. Abedi; Majid Daftaribesheli; S. Shafiei

doi:10.1002/app.21906

Highly active Ziegler-Nattta catalyst for propylene polymerization

S. Abedi, Majid Daftaribesheli, S. Shafiei

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

Polymerization of propylene was carried out by using a MgCl2-EtOH-TiCl4-ID-TEA-ED catalyst system in n-heptane, where ID (internal donor) was an organic diester, ED (external donor) was a silane compound, and TEA (triethyl aluminum) was the activator. The influences of temperature, pressure, time, hydrogen, and the molar ratios of Al/Ti and ED/Ti on polymer isotacticity and catalyst activity were studied by solubility in boiling n-heptane and measuring the polymer produced, respectively. The morphology of the polymers was evaluated through scanning electron microscopy and particle size distribution. The rheological properties of the poly(propylene) were determined by the melt flow index. It was found that the catalyst showed good morphology and high activity and also the produced polymers were characterized by high isotacticity and globulelike shapes.

Original language	English
Pages (from-to)	1744-1749
Number of pages	6
Journal	Journal of applied polymer science
Volume	97
Issue number	4
DOIs	https://doi.org/10.1002/app.21906
Publication status	Published - 2005

Keywords

isotactic
Catalysts
Morphology
IR-61494
poly(propylene) (PP)
METIS-230187
Ziegler-Natta Polymerization

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10.1002/app.21906

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title = "Highly active Ziegler-Nattta catalyst for propylene polymerization",

abstract = "Polymerization of propylene was carried out by using a MgCl2-EtOH-TiCl4-ID-TEA-ED catalyst system in n-heptane, where ID (internal donor) was an organic diester, ED (external donor) was a silane compound, and TEA (triethyl aluminum) was the activator. The influences of temperature, pressure, time, hydrogen, and the molar ratios of Al/Ti and ED/Ti on polymer isotacticity and catalyst activity were studied by solubility in boiling n-heptane and measuring the polymer produced, respectively. The morphology of the polymers was evaluated through scanning electron microscopy and particle size distribution. The rheological properties of the poly(propylene) were determined by the melt flow index. It was found that the catalyst showed good morphology and high activity and also the produced polymers were characterized by high isotacticity and globulelike shapes.",

keywords = "isotactic, Catalysts, Morphology, IR-61494, poly(propylene) (PP), METIS-230187, Ziegler-Natta Polymerization",

author = "S. Abedi and Majid Daftaribesheli and S. Shafiei",

year = "2005",

doi = "10.1002/app.21906",

language = "English",

volume = "97",

pages = "1744--1749",

journal = "Journal of applied polymer science",

issn = "0021-8995",

publisher = "Wiley",

number = "4",

}

TY - JOUR

T1 - Highly active Ziegler-Nattta catalyst for propylene polymerization

AU - Abedi, S.

AU - Daftaribesheli, Majid

AU - Shafiei, S.

PY - 2005

Y1 - 2005

N2 - Polymerization of propylene was carried out by using a MgCl2-EtOH-TiCl4-ID-TEA-ED catalyst system in n-heptane, where ID (internal donor) was an organic diester, ED (external donor) was a silane compound, and TEA (triethyl aluminum) was the activator. The influences of temperature, pressure, time, hydrogen, and the molar ratios of Al/Ti and ED/Ti on polymer isotacticity and catalyst activity were studied by solubility in boiling n-heptane and measuring the polymer produced, respectively. The morphology of the polymers was evaluated through scanning electron microscopy and particle size distribution. The rheological properties of the poly(propylene) were determined by the melt flow index. It was found that the catalyst showed good morphology and high activity and also the produced polymers were characterized by high isotacticity and globulelike shapes.

AB - Polymerization of propylene was carried out by using a MgCl2-EtOH-TiCl4-ID-TEA-ED catalyst system in n-heptane, where ID (internal donor) was an organic diester, ED (external donor) was a silane compound, and TEA (triethyl aluminum) was the activator. The influences of temperature, pressure, time, hydrogen, and the molar ratios of Al/Ti and ED/Ti on polymer isotacticity and catalyst activity were studied by solubility in boiling n-heptane and measuring the polymer produced, respectively. The morphology of the polymers was evaluated through scanning electron microscopy and particle size distribution. The rheological properties of the poly(propylene) were determined by the melt flow index. It was found that the catalyst showed good morphology and high activity and also the produced polymers were characterized by high isotacticity and globulelike shapes.

KW - isotactic

KW - Catalysts

KW - Morphology

KW - IR-61494

KW - poly(propylene) (PP)

KW - METIS-230187

KW - Ziegler-Natta Polymerization

U2 - 10.1002/app.21906

DO - 10.1002/app.21906

M3 - Article

SN - 0021-8995

VL - 97

SP - 1744

EP - 1749

JO - Journal of applied polymer science

JF - Journal of applied polymer science

IS - 4

ER -

Highly active Ziegler-Nattta catalyst for propylene polymerization

Abstract

Keywords

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