THE USE OF ELECTRON DONORS TO INCREASE STEROSPECIFICITY IN ZIEGLE-NATTA CATALYZED PROPYLENE POLYMERIZATION

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

NOURI AHANGARANI FARSHID; BAHRI LALEH NAEIMEH; NEKOOMANESH HAGHIGHI MEHDI

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Iranian Journal of Polymer Science and Technology Year:2016 | Volume:29 | Issue:2 Page(s): 105-125

Download Full-Text

View:

376

Download:

Cites:

Information Journal Paper

Title

THE USE OF ELECTRON DONORS TO INCREASE STEROSPECIFICITY IN ZIEGLE-NATTA CATALYZED PROPYLENE POLYMERIZATION

Author(s)

NOURI AHANGARANI FARSHID | BAHRI LALEH NAEIMEH | NEKOOMANESH HAGHIGHI MEHDI | Issue Writer Certificate

Keywords

HETEROGENEOUS ZIEGLER-NATTA CATALYSTS

ELECTRON DONORS

STEREOSPECIFICITY

POLYPROPYLENE

POLYMERIZATION

Abstract

Different chemical components in traditional Ziegler–Natta catalytic system include: (1) titanium and vanadium containing compounds, mostly TiCl4, as an active centre, (2) trialkylaluminium-based Lewis acid compounds, especially triethylaluminium, as precatalyst and alkylating agent, and (3) inorganic compounds, specifically MgCl2 and silica, as catalyst supports. Besides these compounds, shortly after the first discovery of Ziegler-Natta catalysts, ELECTRON DONORS have been considered as the key components for MgCl2-supported Ziegler-Natta catalysts, as they improve the STEREOSPECIFICITY and activity of these types of catalysts. Most electron donor compounds have oxygen atom and only a few contain nitrogen atom in their structure. Starting from benzoate for third-generation Ziegler–Natta catalysts, the discovery of new donors has always updated the performance of Ziegler–Natta catalysts. Since the first discovery of these compounds numerous efforts have been devoted in both industry and academic laboratories, not only to discover new ELECTRON DONORS but also to understand their roles in Ziegler–Natta olefin POLYMERIZATION and suitable MgCl2-alcohol adducts formation. This article reviews the history of such research and development efforts. The first part of the article describes the historical developments of catalyst, with a special focus on donors of industrial importance, followed by an account given on recent trends in the latest donors developed. The next part of the article covers the historical progress toward mechanistic understanding of how donors improve the performance of Ziegler–Natta catalysts and how they undergo decomposition by interaction with Lewis acidic species such as the AlEt3 and TiCl4.

Cites

No record.

References

No record.

Cite

APA: Copy

NOURI AHANGARANI, FARSHID, BAHRI LALEH, NAEIMEH, & NEKOOMANESH HAGHIGHI, MEHDI. (2016). THE USE OF ELECTRON DONORS TO INCREASE STEROSPECIFICITY IN ZIEGLE-NATTA CATALYZED PROPYLENE POLYMERIZATION. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), 29(2), 105-125. SID. https://sid.ir/paper/700260/en

Vancouver: Copy

NOURI AHANGARANI FARSHID, BAHRI LALEH NAEIMEH, NEKOOMANESH HAGHIGHI MEHDI. THE USE OF ELECTRON DONORS TO INCREASE STEROSPECIFICITY IN ZIEGLE-NATTA CATALYZED PROPYLENE POLYMERIZATION. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN)[Internet]. 2016;29(2):105-125. Available from: https://sid.ir/paper/700260/en

IEEE: Copy

FARSHID NOURI AHANGARANI, NAEIMEH BAHRI LALEH, and MEHDI NEKOOMANESH HAGHIGHI, “THE USE OF ELECTRON DONORS TO INCREASE STEROSPECIFICITY IN ZIEGLE-NATTA CATALYZED PROPYLENE POLYMERIZATION,” IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), vol. 29, no. 2, pp. 105–125, 2016, [Online]. Available: https://sid.ir/paper/700260/en

Related Journal Papers

No record.

Related Seminar Papers

No record.

Related Plans

No record.

Recommended Workshops