1
|
Gote RP, Romano D, van der Eem J, Zhao J, Zhou F, Rastogi S. Unprecedented Mechanical Properties in Linear UHMWPE Using a Heterogeneous Catalytic System. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c02215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Ravindra P. Gote
- Physical Science and Engineering Division, King Abdullah University of Science and Technology, 4700 KAUST, Thuwal23955-6900, Kingdom of Saudi Arabia
- Department of Biobased Materials, Faculty of Science and Engineering, Maastricht University, P.O. Box 616, 6200 MDMaastricht, the Netherlands
| | - Dario Romano
- Physical Science and Engineering Division, King Abdullah University of Science and Technology, 4700 KAUST, Thuwal23955-6900, Kingdom of Saudi Arabia
- Department of Biobased Materials, Faculty of Science and Engineering, Maastricht University, P.O. Box 616, 6200 MDMaastricht, the Netherlands
| | - Joris van der Eem
- Physical Science and Engineering Division, King Abdullah University of Science and Technology, 4700 KAUST, Thuwal23955-6900, Kingdom of Saudi Arabia
| | - Jiayi Zhao
- Physical Science and Engineering Division, King Abdullah University of Science and Technology, 4700 KAUST, Thuwal23955-6900, Kingdom of Saudi Arabia
| | - Fuhai Zhou
- Physical Science and Engineering Division, King Abdullah University of Science and Technology, 4700 KAUST, Thuwal23955-6900, Kingdom of Saudi Arabia
| | - Sanjay Rastogi
- Physical Science and Engineering Division, King Abdullah University of Science and Technology, 4700 KAUST, Thuwal23955-6900, Kingdom of Saudi Arabia
- Department of Biobased Materials, Faculty of Science and Engineering, Maastricht University, P.O. Box 616, 6200 MDMaastricht, the Netherlands
| |
Collapse
|
2
|
Wu SL, Qiao J, Guan J, Chen HM, Wang T, Wang C, Wang Y. Nascent disentangled UHMWPE: Origin, synthesis, processing, performances and applications. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
3
|
A Series of Green Oxovanadium(IV) Precatalysts with O, N and S Donor Ligands in a Sustainable Olefins Oligomerization Process. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27228038. [PMID: 36432140 PMCID: PMC9694032 DOI: 10.3390/molecules27228038] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/14/2022] [Accepted: 11/18/2022] [Indexed: 11/22/2022]
Abstract
Designing catalyst systems based on transition metal ions and activators using the principles of green chemistry is a fundamental research goal of scientists due to the reduction of poisonous solvents, metal salts and organic ligands released into the environment. Urgent measures to reduce climate change are in line with the goals of sustainable development and the new restrictive laws ordained by the European Union. In this report, we attempted to use known oxovanadium(IV) green complex compounds with O, N and S donor ligands, i.e., [VO(TDA)phen] • 1.5 H2O (TDA = thiodiacetate), (phen = 1,10-phenanthroline), oxovanadium(IV) microclusters with 2-phenylpyridine (oxovanadium(IV) cage), [VOO(dipic)(2-phepyH)] • H2O (dipic = pyridine-2,6-dicarboxylate anion), (2-phepyH = 2-phenylpyridine), [VO(dipic)(dmbipy)] • 2H2O (dmbipy = 4,4'-dimethoxy-2,2'-dipyridyl) and [VO(ODA)(bipy)] • 2 H2O (ODA = oxydiacetate), (bipy = 2,2'-bipyridine), as precatalysts in oligomerization reactions of 3-buten-2-ol, 2-propen-1-ol, 2-chloro-2-propen-1-ol and 2,3-dibromo-2-propen-1-ol. The precatalysts, in most cases, turned out to be highly active because the catalytic activity exceeded 1000 g mmol-1·h-1. In addition, the oligomers were characterized by Fourier-transform infrared spectroscopy (FTIR), matrix-assisted laser desorption/ionization (MALDI-TOF-MS), thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) techniques.
Collapse
|
4
|
Ch. Gagieva S, Kurmaev DA, Magomedov KF, Tuskaev VA, Denisov GL, Khakina EA, Zakharchenko EN, Golubev EK, Evseeva MD, Dzevakov PB, Bulychev BM. Cationic [TiCl6]+2 and anionic [TiCl6-xLx]-(2-x) titanium complexes with crown ether as pre-catalyst for ethylene polymerization. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
5
|
First example of cationic titanium (III) complexes with crown ether as catalysts for ethylene polymerization. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111166] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
6
|
Luo Y, Li J, Luo D, You Q, Yang Z, Li T, Li X, Xie G. Methylene-Bridged Tridentate Salicylaldiminato Binuclear Titanium Complexes as Copolymerization Catalysts for the Preparation of LLDPE through [Fe]/[Ti] Tandem Catalysis. Polymers (Basel) 2019; 11:E1114. [PMID: 31266198 PMCID: PMC6681003 DOI: 10.3390/polym11071114] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 06/06/2019] [Accepted: 06/11/2019] [Indexed: 02/03/2023] Open
Abstract
A novel tandem catalysis system consisted of salicylaldiminato binuclear/mononuclear titanium and 2,6-bis(imino)pyridyl iron complexes was developed to catalyze ethylene in-situ copolymerization. Linear low-density polyethylene (LLDPE) with varying molecular weight and branching degree was successfully prepared with ethylene as the sole monomer feed. The polymerization conditions, including the reaction temperature, the Fi/Ti molar ratio, and the structures of bi- or mononuclear Ti complexes were found to greatly influence the catalytic performances and the properties of obtained polymers. The polymers were characterized by differential scanning calorimetry (DSC), high temperature gel permeation chromatography (GPC) and high temperature 13C NMR spectroscopy, and found to contain ethyl, butyl, as well as some longer branches. The binuclear titanium complexes demonstrated excellent catalytic activity (up to 8.95 × 106 g/molTi·h·atm) and showed a strong positive comonomer effect when combined with the bisiminopyridyl Fe complex. The branching degree can be tuned from 2.53 to 22.89/1000C by changing the reaction conditions or using different copolymerization pre-catalysts. The melting points, crystallinity and molecular weights of the products can also be modified accordingly. The binuclear complex Ti2L1 with methylthio sidearm showed higher capability for comonomer incorporation and produced polymers with higher branching degree and much higher molecular weight compared with the mononuclear analogue.
Collapse
Affiliation(s)
- Yani Luo
- Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan 430074, China
| | - Jian Li
- Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan 430074, China
| | - Derong Luo
- Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan 430074, China
| | - Qingliang You
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, School of Chemical and Environmental Engineering, Jianghan University, Wuhan 430056, China
| | - Zifeng Yang
- Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan 430074, China
| | - Tingcheng Li
- Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan 430074, China
| | - Xiandan Li
- Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan 430074, China
| | - Guangyong Xie
- Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan 430074, China.
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, School of Chemical and Environmental Engineering, Jianghan University, Wuhan 430056, China.
| |
Collapse
|
7
|
Serenko OA, Buzin MI, Tuskaev VA, Gagieva SC, Kolosov NA, Kurmaev DA, Savel'eva TF, Golubev EK, Zubkevich SV, Vasil'ev VG, Nikiforova GG, Korlyukov AA, Bulychev BM. A Novel Ziegler⁻Natta-Type Catalytic System-TiCl₄/2,2'-Dimethoxy-1,1'-Binaphthalene/Et₃Al₂Cl₃/Bu₂Mg for Production of Ultrahigh Molecular Weight Polyethylene Nascent Reactor Powders, Suitable for Solvent-Free Processing. Polymers (Basel) 2018; 10:E1281. [PMID: 30961206 PMCID: PMC6401888 DOI: 10.3390/polym10111281] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 11/14/2018] [Accepted: 11/15/2018] [Indexed: 11/16/2022] Open
Abstract
A series of ultrahigh molecular weight polyethylenes with viscosity-average molecular weights in the range of 1.6⁻5.6 × 10⁶ have been prepared by using a novel Ziegler⁻Natta-type catalytic system-TiCl₄/2,2'-dimethoxy-1,1'-binaphthalene/Et₃Al₂Cl₃/Bu₂Mg at different temperatures (Tpoly) in the range between 10 and 70 °C in toluene. The morphology of the nascent reactor powders has been studied by scanning electron microscopy, wide-angle X-ray diffraction, and the DSC melting behavior. Polymers are suitable for the modern processing methods-the solvent-free solid-state formation of super high-strength (tensile strength over 1.8⁻2.5 GPa) and high-modulus (elastic modulus up to 136 GPa) oriented film tapes. With decrease of Tpoly, the drawability of the reactor powders increased significantly.
Collapse
Affiliation(s)
- Olga A Serenko
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 ul. Vavilova, 119991 Moscow, Russia.
| | - Mikhail I Buzin
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 ul. Vavilova, 119991 Moscow, Russia.
| | - Vladislav A Tuskaev
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 ul. Vavilova, 119991 Moscow, Russia.
- Department of Chemistry, M. V. Lomonosov Moscow State University, 1 Leninskie Gory, 119992 Moscow, Russia.
| | - Svetlana C Gagieva
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 ul. Vavilova, 119991 Moscow, Russia.
- Department of Chemistry, M. V. Lomonosov Moscow State University, 1 Leninskie Gory, 119992 Moscow, Russia.
| | - Nikolay A Kolosov
- Department of Chemistry, M. V. Lomonosov Moscow State University, 1 Leninskie Gory, 119992 Moscow, Russia.
| | - Dmitrii A Kurmaev
- Department of Chemistry, M. V. Lomonosov Moscow State University, 1 Leninskie Gory, 119992 Moscow, Russia.
| | - Tatyana F Savel'eva
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 ul. Vavilova, 119991 Moscow, Russia.
| | - Evgenii K Golubev
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 ul. Vavilova, 119991 Moscow, Russia.
- Enikolopov Institute of Synthetic Polymer Materials, Russian Academy of Sciences, Profsoyuznaya Str., 70; 117393 Moscow, Russia.
| | - Sergey V Zubkevich
- Department of Chemistry, M. V. Lomonosov Moscow State University, 1 Leninskie Gory, 119992 Moscow, Russia.
| | - Viktor G Vasil'ev
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 ul. Vavilova, 119991 Moscow, Russia.
| | - Galina G Nikiforova
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 ul. Vavilova, 119991 Moscow, Russia.
| | - Alexander A Korlyukov
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 ul. Vavilova, 119991 Moscow, Russia.
| | - Boris M Bulychev
- Department of Chemistry, M. V. Lomonosov Moscow State University, 1 Leninskie Gory, 119992 Moscow, Russia.
| |
Collapse
|
8
|
Chammingkwan P, Bando Y, Terano M, Taniike T. Nano-Dispersed Ziegler-Natta Catalysts for 1 μm-Sized Ultra-High Molecular Weight Polyethylene Particles. Front Chem 2018; 6:524. [PMID: 30460228 PMCID: PMC6232879 DOI: 10.3389/fchem.2018.00524] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 10/11/2018] [Indexed: 11/13/2022] Open
Abstract
A catalytic approach to synthesize microfine ultra-high molecular weight polyethylene (UHMWPE) particles was proposed based on the exploitation of nano-sized catalysts. By utilizing MgO nanoparticles as a core material, a Ziegler-Natta-type MgO/MgCl2/TiCl4 core-shell catalyst with the particle size in a nano-range scale was prepared in a simple preparation step. The organic modification of MgO surfaces prior to catalyzation prevented agglomeration and facilitated the full dispersion of catalyst particles at a primary particle level for the first time. The nano-dispersed catalysts successfully afforded a direct access to UHMWPE having the particle size in the range of 1-2 μm at a reasonable activity. Extremely fine polymer particles yielded several advantages, especially at a significantly lower fusion temperature in compression molding.
Collapse
Affiliation(s)
| | | | | | - Toshiaki Taniike
- Japan Advanced Institute of Science and Technology, Graduate School of Advanced Science and Technology, Nomi, Japan
| |
Collapse
|