Use of Vanadium Complexes Bearing Naphthalene-Bridged Nitrogen-Sulfonate Ligands as Catalysts for Copolymerization of Ethylene and Propylene
Abstract
:1. Introduction
2. Experimental Section
2.1. General Considerations and Materials
2.2. Synthesis of Complexes
2.2.1. Synthesis of Complex 1a
2.2.2. Synthesis of Complex 1b
2.3. General Procedure for Copolymerization of Ethylene and Propylene
3. Results and Discussion
3.1. Synthesis of Vanadium Complexes
3.2. Ethylene/Propylene Copolymerization
3.3. Polymer Characterization
4. Conclusions
Supplementary Materials
Acknowledgments
Author Contributions
Conflicts of Interest
References
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Run | Cat. | ETCA/V | Yield (g) | Activity b | Mw × 10−4 c | Mw/Mn c | C3 Incorp. (mol%) d |
---|---|---|---|---|---|---|---|
1 | 1a | 0 | 1.03 | 41.2 | 23.1 | 3.16 | 36.0 |
2 | 1a | 5 | 1.30 | 52.0 | 12.7 | 2.09 | 39.0 |
3 | 1a | 10 | 1.32 | 52.8 | 8.3 | 3.17 | 40.6 |
4 | 1a | 20 | 1.22 | 48.8 | 4.0 | 2.66 | 48.2 |
5 | 1b | 0 | 0.50 | 20.0 | 28.1 | 3.01 | 33.1 |
6 | 1b | 10 | 1.96 | 78.4 | 19.6 | 2.63 | 37.3 |
7 | 1b | 20 | 1.55 | 62.0 | 6.1 | 2.77 | 49.4 |
8 | VOCl3 | 0 | 0.93 | 18.6 | 19.5 | 5.69 | 25.1 |
9 | VOCl3 | 5 | 0.96 | 38.4 | 10.3 | 7.25 | 28.9 |
10 | VOCl3 | 10 | 1.60 | 64.0 | 6.4 | 7.69 | 33.0 |
11 | VOCl3 | 20 | 1.53 | 61.2 | 2.2 | 5.46 | 40.2 |
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Hao, X.; Zhang, C.; Li, L.; Zhang, H.; Hu, Y.; Hao, D.; Zhang, X. Use of Vanadium Complexes Bearing Naphthalene-Bridged Nitrogen-Sulfonate Ligands as Catalysts for Copolymerization of Ethylene and Propylene. Polymers 2017, 9, 325. https://doi.org/10.3390/polym9080325
Hao X, Zhang C, Li L, Zhang H, Hu Y, Hao D, Zhang X. Use of Vanadium Complexes Bearing Naphthalene-Bridged Nitrogen-Sulfonate Ligands as Catalysts for Copolymerization of Ethylene and Propylene. Polymers. 2017; 9(8):325. https://doi.org/10.3390/polym9080325
Chicago/Turabian StyleHao, Xiufeng, Chundi Zhang, Lin Li, Hexin Zhang, Yanming Hu, Daifeng Hao, and Xuequan Zhang. 2017. "Use of Vanadium Complexes Bearing Naphthalene-Bridged Nitrogen-Sulfonate Ligands as Catalysts for Copolymerization of Ethylene and Propylene" Polymers 9, no. 8: 325. https://doi.org/10.3390/polym9080325