Mechanism of internal and external electron donor effects on propylene polymerization with MgCl2 -supported Ziegler-Natta catalyst: New evidences based on active center counting

2018 ◽  
Vol 135 (32) ◽  
pp. 46605 ◽  
Author(s):  
Yuhong Weng ◽  
Baiyu Jiang ◽  
Zhisheng Fu ◽  
Zhiqiang Fan
Keyword(s):  
Active Center ◽  
Electron Donor ◽  
Propylene Polymerization ◽  
Natta Catalyst ◽  
External Electron Donor ◽  
Ziegler Natta Catalyst

Microstructure of polypropylene and active center in Ziegler–Natta catalyst: effect of novel salicylate internal donor

RSC Advances ◽  
2016 ◽  
Vol 6 (79) ◽  
pp. 75023-75031 ◽  
Author(s):  
Qian Zhou ◽  
Ailian Wang ◽  
Huayi Li ◽  
Zhi Luo ◽  
Tao Zheng ◽  
...  
Keyword(s):  
Active Center ◽  
Propylene Polymerization ◽  
Active Centers ◽  
Internal Donor ◽  
Important Impact ◽  
Natta Catalyst ◽  
Catalyst Effect ◽  
Ziegler Natta Catalyst

The volume of ecofriendly salicylate internal donors for propylene polymerization has an important impact on the catalyst active centers and microstructure of polypropylene.

Control of Ziegler–Natta catalyst activity by the structural design of alkoxysilane-based external donors

2020 ◽  
Vol 44 (17) ◽  
pp. 6845-6852 ◽  
Author(s):  
Vikas Khatri ◽  
Usharani Sahoo ◽  
Sukhdeep Kaur ◽  
Rashmi Rani ◽  
Gurmeet Singh ◽  
...  
Keyword(s):  
Structural Design ◽  
Catalyst Activity ◽  
Propylene Polymerization ◽  
Natta Catalyst ◽  
Ziegler Natta Catalyst

Herein, the evaluation of four commercial alkoxysilanes and two laboratory synthesized novel diethoxysilacycloalkanes as external donors towards propylene polymerization has been done.

POISONING OF ACTIVE SITES ON ZIEGLER-NATTA CATALYST FOR PROPYLENE POLYMERIZATION

2008 ◽  
Vol 26 (05) ◽  
pp. 547 ◽  
Author(s):  
Kitti Tangjituabun ◽  
Sang Yull Kim ◽  
Yuichi Hiraoka ◽  
Toshiaki Taniike ◽  
Minoru Terano ◽  
...  
Keyword(s):  
Active Sites ◽  
Propylene Polymerization ◽  
Natta Catalyst ◽  
Ziegler Natta Catalyst
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