A robust immobilization strategy in the nano-dispersed Ziegler–Natta catalyst: non-covalent O–Ti coordination. Issue 74 (11th August 2020)

• Record Type: Journal Article
• Authors: Li, Wei; Wang, Ning; Cao, Yu; Tang, Xin; Dong, Chuanding
• Is Part Of: Chemical communications. Volume 56:Issue 74(2020)
• Page Start: 10843
• Page End: 10846
• Publication Date: 2020-08-11
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d0cc04502k
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : A robust non-covalent O–Ti bond facilitates the synthesis of polyethylene with a narrow distribution. Abstract : An immobilization strategy of catalytic TiCl4 on polyhedral oligomeric silsesquioxanes (POSSs) is developed, which features both robustness and equivalence of active sites in ethylene polymerization thanks to the non-covalent O–Ti coordination. The symmetric structure of POSS homogenizes the coordination of the TiCl4 molecules, enabling considerable activity in the synthesis of narrowly distributed polyethylene.