1
|
Wang C, Wang D, Xu T, Zhang Q, Fu Z. Effect of N-Aryl Para-Benzhydryl Substituent on the Thermal Stability of α-Diimine Nickel Catalyst. Macromol Rapid Commun 2023; 44:e2300221. [PMID: 37293788 DOI: 10.1002/marc.202300221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 05/18/2023] [Indexed: 06/10/2023]
Abstract
The thermal stability of α-diimine nickel catalysts has always been the focus of research. The introduction of large groups in the backbone or N-aryl ortho-position is a relatively mature solution. However, the question of whether the N-aryl bond rotation is a factor affecting the thermal stability of nickel catalysts is still open. In this work, the effects of N-aryl para-benzhydryl substitutes on catalyst thermal stability are investigated, and the results of ethylene polymerization and the factors affecting thermal stability (steric effect, electronic effect, five-membered coordination ring stability, N-aryl bond rotation, etc.) are systematically analyzed. It is believed that the introduction of large steric hindrance groups at the N-aryl para-position hinders the rotation of the N-aryl bond. This obstacle effect is beneficial to improving catalyst thermal stability, and the obstacle capacity is weakened with the increase of ortho-substituent size.
Collapse
Affiliation(s)
- Cheng Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058, P. R. China
- ZJU-Hangzhou Xinglu High-end Polyolefin Research & Development Center, Hangzhou, 310058, P. R. China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Hangzhou, 310058, P. R. China
| | - Dan Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058, P. R. China
| | - Tao Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058, P. R. China
- ZJU-Hangzhou Xinglu High-end Polyolefin Research & Development Center, Hangzhou, 310058, P. R. China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Hangzhou, 310058, P. R. China
- Hangzhou Xinglu Technologies Co. Ltd., Hangzhou, 310012, P. R. China
| | - Qisheng Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058, P. R. China
| | - Zhisheng Fu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058, P. R. China
- ZJU-Hangzhou Xinglu High-end Polyolefin Research & Development Center, Hangzhou, 310058, P. R. China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Hangzhou, 310058, P. R. China
| |
Collapse
|
2
|
Zhang R, Ahmed A, Yu B, Cong H, Shen Y. Preparation, application and development of poly(ionic liquid) microspheres. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119706] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
3
|
A computational fluid dynamics model coupled with ethylene polymerization kinetics for fluidized bed polyethylene reactor. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
4
|
Zhang R, Gao R, Gou Q, Lai J, Li X. Precipitation Polymerization: A Powerful Tool for Preparation of Uniform Polymer Particles. Polymers (Basel) 2022; 14:polym14091851. [PMID: 35567018 PMCID: PMC9105061 DOI: 10.3390/polym14091851] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 04/07/2022] [Accepted: 04/08/2022] [Indexed: 02/06/2023] Open
Abstract
Precipitation polymerization (PP) is a powerful tool to prepare various types of uniform polymer particles owing to its outstanding advantages of easy operation and the absence of any surfactant. Several PP approaches have been developed up to now, including traditional thermo-induced precipitation polymerization (TRPP), distillation precipitation polymerization (DPP), reflux precipitation polymerization (RPP), photoinduced precipitation polymerization (PPP), solvothermal precipitation polymerization (SPP), controlled/‘‘living’’ radical precipitation polymerization (CRPP) and self-stabilized precipitation polymerization (2SPP). In this review, a general introduction to the categories, mechanisms, and applications of precipitation polymerization and the recent developments are presented, proving that PP has great potential to become one of the most attractive polymerization techniques in materials science and bio-medical areas.
Collapse
|
5
|
Wu Z. 我国聚烯烃产业技术的现状与发展建议. CHINESE SCIENCE BULLETIN-CHINESE 2022. [DOI: 10.1360/tb-2021-1208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
6
|
Zhang Q, Liu M, Ma Y, Ye Z, Liang T, Sun W. Highly Active and Thermostable Camphyl α‐Diimine Nickel (II) Catalysts for Ethylene Polymerization: Effects of
N
‐Aryl Substituting Groups on Catalytic Properties and Branching Structures of Polyethylene. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6606] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Qiuyue Zhang
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry Chinese Academy of Sciences Beijing China
- CAS Research/Education Center for Excellence in Molecular Sciences University of Chinese Academy of Sciences Beijing China
| | - Ming Liu
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry Chinese Academy of Sciences Beijing China
- CAS Research/Education Center for Excellence in Molecular Sciences University of Chinese Academy of Sciences Beijing China
| | - Yanping Ma
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry Chinese Academy of Sciences Beijing China
| | - Zhibin Ye
- Department of Chemical and Materials Engineering Concordia University Quebec Canada
| | - Tongling Liang
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry Chinese Academy of Sciences Beijing China
| | - Wen‐Hua Sun
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry Chinese Academy of Sciences Beijing China
- CAS Research/Education Center for Excellence in Molecular Sciences University of Chinese Academy of Sciences Beijing China
| |
Collapse
|
7
|
Investigations of ligand backbone effects on bulky diarylmethyl-based nickel(II) and palladium(II) catalyzed ethylene polymerization and copolymerization. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.122046] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
8
|
Zheng H, Zhong L, Du C, Du W, Cheung CS, Ruan J, Gao H. Combining hydrogen bonding interactions with steric and electronic modifications for thermally robust α-diimine palladium catalysts toward ethylene (co)polymerization. Catal Sci Technol 2021. [DOI: 10.1039/d0cy01617a] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Thermally robust α-diimine palladium catalysts are highly active for ethylene (co)polymerization at high temperatures by steric and electronic modifications in combination with hydrogen bonding interactions.
Collapse
Affiliation(s)
- Handou Zheng
- School of Materials Science and Engineering
- PCFM Lab
- GD HPPC Lab
- Sun Yat-sen University
- Guangzhou 510275
| | - Liu Zhong
- School of Materials Science and Engineering
- PCFM Lab
- GD HPPC Lab
- Sun Yat-sen University
- Guangzhou 510275
| | - Cheng Du
- School of Materials Science and Engineering
- PCFM Lab
- GD HPPC Lab
- Sun Yat-sen University
- Guangzhou 510275
| | - Wenbo Du
- School of Materials Science and Engineering
- PCFM Lab
- GD HPPC Lab
- Sun Yat-sen University
- Guangzhou 510275
| | - Chi Shing Cheung
- School of Materials Science and Engineering
- PCFM Lab
- GD HPPC Lab
- Sun Yat-sen University
- Guangzhou 510275
| | - Jingjing Ruan
- School of Materials Science and Engineering
- PCFM Lab
- GD HPPC Lab
- Sun Yat-sen University
- Guangzhou 510275
| | - Haiyang Gao
- School of Materials Science and Engineering
- PCFM Lab
- GD HPPC Lab
- Sun Yat-sen University
- Guangzhou 510275
| |
Collapse
|