A Propylene Polymerization Catalyst Using Poly (propylene glycol) dibenzoate as Electron Donor

Chinese Journal of Catalysis ›› 2007, Vol. 28 ›› Issue (1): 3-4.

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A Propylene Polymerization Catalyst Using Poly (propylene glycol) dibenzoate as Electron Donor

ZHANG Qiaofeng~1; YUAN Yuping~ 2; 3; ZHANG Chunyu~2; CHEN Bin~ 2; ZHANG Xuequan~ 1; 2

1 School of Biological Engineering; Changchun University of Technology; Changchun 130012; Jilin; China; 2 Changchun Institute of Applied Chemistry; The Chinese Academy of Sciences; Changchun 130022; 3 Graduate University of Chinese Academy of Sciences; Beijing 100049; China

Received:2007-01-25 Online:2007-01-25 Published:2010-08-28

Abstract

Abstract: A novel MgCl_2-supported Ziegler-Natta catalyst using poly(propylene glycol)dibenzoate (PPGDB) as the internal electron donor for propylene polymerization was prepared. The catalyst exhibited comparable activity and stereoselectivity with that using normal phthalate as electron donor but rather broader molecular weight distribution of resulting polypropylene. Examination of the interaction between PPGDB and MgCl_2 by using infrared spectroscopy showed that both C=O and C-O-C of PPGDB could coordinate to MgCl2.

Key words: poly（propylene glycol）dibenzoate, electron donor, magnesium chloride, supported catalyst, propylene, polymerization, broad molecular weight distribution

ZHANG Qiaofeng~1; YUAN Yuping~ 2; 3; ZHANG Chunyu~2; CHEN Bin~ 2; ZHANG Xuequan~ 1; 2. A Propylene Polymerization Catalyst Using Poly (propylene glycol) dibenzoate as Electron Donor[J]. Chinese Journal of Catalysis, 2007, 28(1): 3-4.

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A Propylene Polymerization Catalyst Using Poly (propylene glycol) dibenzoate as Electron Donor

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