Chem. J. Chinese Universities ›› 2022, Vol. 43 ›› Issue (8): 20220140.doi: 10.7503/cjcu20220140
• Polymer Chemistry • Previous Articles Next Articles
QIU Xinsheng, WU Qin, SHI Daxin, ZHANG Yaoyuan, CHEN Kangcheng(), LI Hansheng
Received:
2022-03-04
Online:
2022-08-10
Published:
2022-05-09
Contact:
CHEN Kangcheng
E-mail:chenkc@bit.edu.cn
Supported by:
CLC Number:
TrendMD:
QIU Xinsheng, WU Qin, SHI Daxin, ZHANG Yaoyuan, CHEN Kangcheng, LI Hansheng. Preparation and High Temperature Fuel Cell Performance of Ionic Crosslinked Sulfonated Polyimides for Proton Exchange Membranes[J]. Chem. J. Chinese Universities, 2022, 43(8): 20220140.
PEM | NDTA?based SPIs | IEC a /(meq·g-1) | WU b (%) | λb | Size change c (%) | Reference | |
---|---|---|---|---|---|---|---|
?tc | ?lc | ||||||
M1 | BSPOB/DABI(5/2) | 2.12(1.89) | 98 | 29 | 81 | 3.2 | This paper |
M2 | BSPOB/DABI(2/1) | 2.02(1.76) | 73 | 23 | 51 | 3.1 | This paper |
M3 | BSPOB/DABI(1/1) | 1.64(1.22) | 42 | 19 | 33 | 3.1 | This paper |
R1 | BSPOB/BAPBz(2/1) | 1.96(1.86) | 76 | 23 | 47 | 3.9 | [ |
R1C | BSPOB/BAPBz(2/1)?crosslinked | (1.73) | 72 | 23 | 43 | 5.0 | [ |
R1X | BSPOB/BAPBz/BAPBa(4/1/1)?crosslinked | (1.83) | 82 | 25 | 39 | 6.4 | [ |
NR212 | 0.91(0.89) | 39 | 24 | 16 | 14 | [ |
Table 1 Physicochemical properties of SPI and NR212 PEMs
PEM | NDTA?based SPIs | IEC a /(meq·g-1) | WU b (%) | λb | Size change c (%) | Reference | |
---|---|---|---|---|---|---|---|
?tc | ?lc | ||||||
M1 | BSPOB/DABI(5/2) | 2.12(1.89) | 98 | 29 | 81 | 3.2 | This paper |
M2 | BSPOB/DABI(2/1) | 2.02(1.76) | 73 | 23 | 51 | 3.1 | This paper |
M3 | BSPOB/DABI(1/1) | 1.64(1.22) | 42 | 19 | 33 | 3.1 | This paper |
R1 | BSPOB/BAPBz(2/1) | 1.96(1.86) | 76 | 23 | 47 | 3.9 | [ |
R1C | BSPOB/BAPBz(2/1)?crosslinked | (1.73) | 72 | 23 | 43 | 5.0 | [ |
R1X | BSPOB/BAPBz/BAPBa(4/1/1)?crosslinked | (1.83) | 82 | 25 | 39 | 6.4 | [ |
NR212 | 0.91(0.89) | 39 | 24 | 16 | 14 | [ |
SPI PEM | Time a /h | WL b (%) | Mc /GPa | Sd /MPa | Ee (%) | Toughness | σf /(mS?cm?1) | ||
---|---|---|---|---|---|---|---|---|---|
50% RH | 70% RH | In water | |||||||
M2 | 0 | 3.8 | 187 | 12 | V | 5.5 | 25 | 158 | |
500 | 10 | 3.0 | 122 | 6 | V | 4.9 | 25 | 153 | |
R1 | 0 | 2.6 | 128 | 51 | V | 8.7 | 35 | 186 | |
500 | 12 | 1.5 | 52 | 10 | V | 8.2 | 35 | 163 | |
R1C | 0 | 2.4 | 105 | 25 | V | 6.1 | 27 | 148 | |
500 | 12 | 1.8 | 80 | 14 | V | 5.7 | 24 | 141 | |
R1X | 0 | 2.2 | 113 | 31 | V | 7.8 | 34 | 163 | |
500 | 12 | 2.0 | 107 | 17 | V | 6.4 | 29 | 160 |
Table 2 Water stability of SPI PEMs
SPI PEM | Time a /h | WL b (%) | Mc /GPa | Sd /MPa | Ee (%) | Toughness | σf /(mS?cm?1) | ||
---|---|---|---|---|---|---|---|---|---|
50% RH | 70% RH | In water | |||||||
M2 | 0 | 3.8 | 187 | 12 | V | 5.5 | 25 | 158 | |
500 | 10 | 3.0 | 122 | 6 | V | 4.9 | 25 | 153 | |
R1 | 0 | 2.6 | 128 | 51 | V | 8.7 | 35 | 186 | |
500 | 12 | 1.5 | 52 | 10 | V | 8.2 | 35 | 163 | |
R1C | 0 | 2.4 | 105 | 25 | V | 6.1 | 27 | 148 | |
500 | 12 | 1.8 | 80 | 14 | V | 5.7 | 24 | 141 | |
R1X | 0 | 2.2 | 113 | 31 | V | 7.8 | 34 | 163 | |
500 | 12 | 2.0 | 107 | 17 | V | 6.4 | 29 | 160 |
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