New Penta-ether as the Internal Donor in the MgCl2-supported Ziegler-Natta Catalysts for Propylene Polymerization

Citation: Roya Zahedi, Faramarz Afshar Taromi, Seyed Heidar Mirjahanmardi, Mehdi Nekoomanesh Haghighi, Khosrow Jadidi, Roghayeh Jamjah. New Penta-ether as the Internal Donor in the MgCl2-supported Ziegler-Natta Catalysts for Propylene Polymerization[J]. Chinese Journal of Polymer Science, 2016, 34(3): 268-279. doi: 10.1007/s10118-016-1751-2 shu

New Penta-ether as the Internal Donor in the MgCl2-supported Ziegler-Natta Catalysts for Propylene Polymerization

1.
Department of Chemistry, Amirkabir University of Technology, 15875-4413, Tehran, Iran
2.
Department of Polymer Engineering, Amirkabir University of Technology, 15875-4413, Tehran, Iran
3.
Department of Polymer Engineering, Amirkabir University of Technology-Mahshahr Campus, 63516-43659, Mahshahr, Iran
4.
Iran Polymer and Petrochemical Institute (IPPI), 14977-13115, Tehran, Iran
5.
Department of Chemistry, Shahid Beheshti University, 19839-69411, Tehran, Iran

通讯作者: Faramarz Afshar Taromi, afshar@aut.ac.ir

基金项目:
This work was financially supported by the Marun Petrochemical Co., Mahshahr, Iran.

摘要: The penta-ether compound was synthesized by the reaction of di(trimethylolpropane) with sodium hydride as the strong base and methyl iodide as the alkyl halide. This compound was characterized by NMR, FTIR, and GC techniques. The MgCl2-supported titanium catalysts were incorporated with varying amounts of penta-ether compound as the internal donor and also the catalysts without the internal donor were synthesized. The synthesized catalysts and the conventional Ziegler-Natta catalyst were characterized. The titanium contents were determined by spectrophotometry, magnesium by complexometric titration and chloride by argentometric titration. The effects of the new internal donor on propylene polymerization with the prepared MgCl2-supported Ziegler-Natta catalysts were investigated and then these results were compared to the results obtained using the conventional diisobutyl phthalate-besed-Ziegler-Natta catalyst. The highest crystallinity degree, melting temperature, and isotacticity of polypropylene were obtained using the catalyst with a penta-ether/Mg molar ratio equal to 0.21.

关键词:

English

New Penta-ether as the Internal Donor in the MgCl2-supported Ziegler-Natta Catalysts for Propylene Polymerization

1.
Department of Chemistry, Amirkabir University of Technology, 15875-4413, Tehran, Iran
2.
Department of Polymer Engineering, Amirkabir University of Technology, 15875-4413, Tehran, Iran
3.
Department of Polymer Engineering, Amirkabir University of Technology-Mahshahr Campus, 63516-43659, Mahshahr, Iran
4.
Iran Polymer and Petrochemical Institute (IPPI), 14977-13115, Tehran, Iran
5.
Department of Chemistry, Shahid Beheshti University, 19839-69411, Tehran, Iran

Corresponding author: Faramarz Afshar Taromi, afshar@aut.ac.ir

Received Date: 12 August 2015
Revised Date: 12 November 2015
Available Online: 05 March 2016
Fund Project:
This work was financially supported by the Marun Petrochemical Co., Mahshahr, Iran.

Abstract: The penta-ether compound was synthesized by the reaction of di(trimethylolpropane) with sodium hydride as the strong base and methyl iodide as the alkyl halide. This compound was characterized by NMR, FTIR, and GC techniques. The MgCl2-supported titanium catalysts were incorporated with varying amounts of penta-ether compound as the internal donor and also the catalysts without the internal donor were synthesized. The synthesized catalysts and the conventional Ziegler-Natta catalyst were characterized. The titanium contents were determined by spectrophotometry, magnesium by complexometric titration and chloride by argentometric titration. The effects of the new internal donor on propylene polymerization with the prepared MgCl2-supported Ziegler-Natta catalysts were investigated and then these results were compared to the results obtained using the conventional diisobutyl phthalate-besed-Ziegler-Natta catalyst. The highest crystallinity degree, melting temperature, and isotacticity of polypropylene were obtained using the catalyst with a penta-ether/Mg molar ratio equal to 0.21.

Key words:

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

New Penta-ether as the Internal Donor in the MgCl2-supported Ziegler-Natta Catalysts for Propylene Polymerization

通讯作者: Faramarz Afshar Taromi, afshar@aut.ac.ir

English

New Penta-ether as the Internal Donor in the MgCl2-supported Ziegler-Natta Catalysts for Propylene Polymerization

Corresponding author: Faramarz Afshar Taromi, afshar@aut.ac.ir

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

New Penta-ether as the Internal Donor in the MgCl2-supported Ziegler-Natta Catalysts for Propylene Polymerization

通讯作者: Faramarz Afshar Taromi, afshar@aut.ac.ir

English

New Penta-ether as the Internal Donor in the MgCl2-supported Ziegler-Natta Catalysts for Propylene Polymerization

Corresponding author: Faramarz Afshar Taromi, afshar@aut.ac.ir

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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