Highly Soluble Fluorinated Polyimides Synthesized with Hydrothermal Process towards Sustainable Green Technology
Abstract
:1. Introduction
2. Methods
2.1. Materials
2.2. Synthesis of Polyimides via Hydrothermal Process
2.3. Synthesis of Polyimides via Thermal Imidization
2.4. Synthesis of Polyimides via Chemical Imdization
2.5. Characterization
3. Results and Discussion
3.1. Polyimide Synthesis
3.2. Thermal Properties
3.3. Solubility and Processability
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Polyimide | Monomer Molar Ratio | Note a | |||
---|---|---|---|---|---|
6FDA | ODA | AHHFP | TFDB | ||
1 | 10 | 10 | - | - | 1H, 1T, 1C |
2 | 10 | - | 10 | - | 2H, 2T, 2C |
3 | 10 | - | - | 10 | 3H, 3T, 3C |
4 | 10 | 5 | 5 | - | 4H, 4T, 4C |
5 | 10 | 5 | - | 5 | 5H, 5T, 5C |
6 | 10 | - | 5 | 5 | 6H, 6T, 6C |
Polyimide | Synthetic Methods a | Mn b | Mw c | PDI d |
---|---|---|---|---|
1 | H | 9738 | 20,781 | 2.13 |
T | 9880 | 47,136 | 4.77 | |
C | 14,159 | 41,530 | 2.93 | |
2 | H | 6177 | 12,931 | 2.09 |
T | 15,830 | 130,180 | 8.22 | |
C | 42,151 | 99,051 | 2.35 | |
3 | H | 7293 | 10,005 | 1.37 |
T | 9381 | 32,900 | 3.51 | |
C | 16,442 | 47,192 | 2.87 | |
4 | H | 7397 | 28,337 | 3.83 |
T | 13,953 | 90,184 | 6.46 | |
C | 28,339 | 65,128 | 2.30 | |
5 | H | 10,484 | 21,370 | 2.04 |
T | 13,599 | 48,542 | 3.57 | |
C | 21,349 | 62,517 | 2.93 | |
6 | H | 7507 | 14,332 | 1.91 |
T | 28,514 | 78,155 | 2.74 | |
C | 21,171 | 71,648 | 3.38 |
Polyimide | Synthetic Methods a | Td5% b (°C) | Td10% b (°C) | Tg c (°C) |
---|---|---|---|---|
1 | H | 523.49 | 541.84 | 273.63 |
T | 524.22 | 540.56 | 299.98 | |
C | 523.94 | 539.49 | 288.21 | |
2 | H | 432.22 | 488.97 | 284.91 |
T | 431.51 | 484.58 | 316.69 | |
C | 400.26 | 466.32 | 249.89 | |
3 | H | 500.22 | 534.08 | 322.93 |
T | 521.25 | 542.45 | 324.43 | |
C | 520.49 | 542.38 | 312.53 | |
4 | H | 449.84 | 508.81 | 310.93 |
T | 464.86 | 516.24 | 312.82 | |
C | 421.26 | 500.06 | 257.17 | |
5 | H | 517.03 | 543.74 | 300.83 |
T | 515.57 | 536.94 | 304.35 | |
C | 526.22 | 544.41 | 297.63 | |
6 | H | 473.07 | 521.97 | 301.36 |
T | 486.07 | 517.79 | 317.67 | |
C | 422.13 | 500.06 | 256.82 |
Polyimide | Synthetic Method | Solvent | ||||||
---|---|---|---|---|---|---|---|---|
DMAc a | NMP b | THF c | CHCl3 d | Toluene | Acetone | Ethanol | ||
1 | H | ++ | ++ | ++ | + | ++ | ++ | - |
T | ++ | ++ | ++ | + | + | ++ | - | |
C | ++ | ++ | ++ | + | ++ | ++ | - | |
2 | H | ++ | ++ | ++ | ++ | ++ | ++ | + |
T | ++ | ++ | ++ | ++ | ++ | ++ | - | |
C | ++ | ++ | ++ | ++ | ++ | ++ | - | |
3 | H | ++ | ++ | ++ | ++ | ++ | ++ | + |
T | ++ | ++ | ++ | ++ | ++ | ++ | - | |
C | ++ | ++ | ++ | ++ | ++ | ++ | - | |
4 | H | ++ | ++ | ++ | + | ++ | ++ | + |
T | ++ | ++ | ++ | + | ++ | ++ | - | |
C | ++ | ++ | ++ | + | ++ | ++ | - | |
5 | H | ++ | ++ | ++ | + | ++ | ++ | - |
T | ++ | ++ | ++ | + | + | ++ | - | |
C | ++ | ++ | ++ | + | ++ | ++ | - | |
6 | H | ++ | ++ | ++ | ++ | ++ | ++ | + |
T | ++ | ++ | ++ | ++ | ++ | ++ | - | |
C | ++ | ++ | ++ | ++ | ++ | ++ | - |
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Lee, J.; Baek, S.; Kim, J.; Lee, S.; Kim, J.; Han, H. Highly Soluble Fluorinated Polyimides Synthesized with Hydrothermal Process towards Sustainable Green Technology. Polymers 2021, 13, 3824. https://doi.org/10.3390/polym13213824
Lee J, Baek S, Kim J, Lee S, Kim J, Han H. Highly Soluble Fluorinated Polyimides Synthesized with Hydrothermal Process towards Sustainable Green Technology. Polymers. 2021; 13(21):3824. https://doi.org/10.3390/polym13213824
Chicago/Turabian StyleLee, Juheon, Seungho Baek, Jinsu Kim, Sangrae Lee, Jinyoung Kim, and Haksoo Han. 2021. "Highly Soluble Fluorinated Polyimides Synthesized with Hydrothermal Process towards Sustainable Green Technology" Polymers 13, no. 21: 3824. https://doi.org/10.3390/polym13213824