Comparison of the Effects of Ethers Compounds as the New Internal Donors on Ziegler-Natta Catalysts for Polymerization of Propylene

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Zahedi Roya; AFSHAR TAREMI FARAMARZ; JAMJAH ROGHAYEH

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Journal Paper

Paper Information

Journal: Nashrieh Shimi va Mohandesi Shimi Iran Year:2021 | Volume:40 | Issue:3 (101) Page(s): 103-119

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Information Journal Paper

Title

Comparison of the Effects of Ethers Compounds as the New Internal Donors on Ziegler-Natta Catalysts for Polymerization of Propylene

Author(s)

Zahedi Roya | AFSHAR TAREMI FARAMARZ | JAMJAH ROGHAYEH | Issue Writer Certificate

Keywords

Propylene polymerization

Ziegler-Natta catalysts

Internal donors

Ether compounds

Williamson reaction

Abstract

In this study, 1, 3-dimethoxy-2, 2-bis(methoxymethyl)propane (Yield: 85%), 5, 5-bis(methoxymethyl)-1, 3-dioxane (Yield: 89%), 1-methoxy-2, 2-bis(methoxymethyl)butane (Yield: 98%), 1, 3-dimethoxy-2-((3-methoxy-2, 2-bis(methoxymethyl)propoxy)methyl)-2-(methoxymethyl)propane (Yield: 78%) and 1-(2, 2-bis(methoxymethyl)butoxy)-2, 2-bis(methoxymethyl)butane (Yield: 93%) as the new internal electron donors were synthesized using the Williamson reaction. The synthesized ethers were characterized by FTIR, NMR, and GC techniques. The MgCl2-supported Ziegler-Natta catalysts were prepared with optimum ID/Mg molar ratio of synthesized internal electron donors, and also without the internal electron donor. Then, polymerization of propylene was carried out with the prepared catalysts and also with industrial Ziegler-Natta catalyst, with and without the external donor, in the presence of triethylaluminum as a co-catalyst and hydrogen as a chain transfer agent. Effects of ethers compounds as the new Internal donors on the catalytic activity, Hydrogen response of the prepared catalysts, xylene solubility, weight-average molecular weight, molecular weight distribution, crystallinity degree, and thermal properties of the produced polypropylenes were examined. Then the performance of the prepared MgCl2-supported Ziegler-Natta catalysts with new internal electron donors on the properties of produced polypropylenes were compared with each other and also, with industrial Ziegler-Natta catalyst containing diisobutyl phthalate internal donor and catalyst without the internal electron donor.

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APA: Copy

Zahedi, Roya, AFSHAR TAREMI, FARAMARZ, & JAMJAH, ROGHAYEH. (2021). Comparison of the Effects of Ethers Compounds as the New Internal Donors on Ziegler-Natta Catalysts for Polymerization of Propylene. NASHRIEH SHIMI VA MOHANDESI SHIMI IRAN (PERSIAN), 40(3 (101) ), 103-119. SID. https://sid.ir/paper/1004688/en

Vancouver: Copy

Zahedi Roya, AFSHAR TAREMI FARAMARZ, JAMJAH ROGHAYEH. Comparison of the Effects of Ethers Compounds as the New Internal Donors on Ziegler-Natta Catalysts for Polymerization of Propylene. NASHRIEH SHIMI VA MOHANDESI SHIMI IRAN (PERSIAN)[Internet]. 2021;40(3 (101) ):103-119. Available from: https://sid.ir/paper/1004688/en

IEEE: Copy

Roya Zahedi, FARAMARZ AFSHAR TAREMI, and ROGHAYEH JAMJAH, “Comparison of the Effects of Ethers Compounds as the New Internal Donors on Ziegler-Natta Catalysts for Polymerization of Propylene,” NASHRIEH SHIMI VA MOHANDESI SHIMI IRAN (PERSIAN), vol. 40, no. 3 (101) , pp. 103–119, 2021, [Online]. Available: https://sid.ir/paper/1004688/en

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