Abstract
This study focuses on improving the CO2/N2 separation performance of Matrimid thorough homogeneous blending with Rhodeftal, a new commercial high performance polymer recently introduced into the market. The membrane blends were characterized using differential scanning calorimetry (DSC) and Fourier-transform infrared spectroscopy (FTIR) to investigate the miscibility and inter-molecular interactions between the two polymers. The DSC results showed a single glass transition temperature (Tg) between those of the individual polymers, which is a confirmation that Matrimid and Rhodeftal are miscible at molecular level. The FTIR spectra indicated strong inter-molecular interactions in this blend system. A lab-made gas permeation setup was used to evaluate the separation performance of membrane blends at different pressures. Similarly, fractional free volume (FFV) of the membrane blends was measured in order to explain gas separation results. Moreover, the plasticization behavior of the membrane blends was analyzed by pure CO2 measurements at different pressures. The results demonstrate that the blend system has significantly improved plasticization resistance to pressures up to 20 bar. In addition, when the Rhodeftal content increases, the selectivity significantly increases, whereas the permeability slightly decreases.
| Original language | English |
|---|---|
| Pages (from-to) | 318-324 |
| Number of pages | 7 |
| Journal | Journal of Membrane Science |
| Volume | 574 |
| DOIs | |
| Publication status | Published - Mar 15 2019 |
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Keywords
- Inter-molecular interactions
- Matrimid
- Miscibility
- Plasticization
- Rhodeftal
ASJC Scopus subject areas
- Biochemistry
- Materials Science(all)
- Physical and Theoretical Chemistry
- Filtration and Separation
Cite this
Plasticization suppression and CO2 separation enhancement of Matrimid through homogeneous blending with a new high performance polymer. / Mazinani, Saeed; Ramezani, Rouzbeh; Molelekwa, Gomotsegang F.; Darvishmanesh, Siavash; Di Felice, Renzo; Van der Bruggen, Bart.
In: Journal of Membrane Science, Vol. 574, 15.03.2019, p. 318-324.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Plasticization suppression and CO2 separation enhancement of Matrimid through homogeneous blending with a new high performance polymer
AU - Mazinani, Saeed
AU - Ramezani, Rouzbeh
AU - Molelekwa, Gomotsegang F.
AU - Darvishmanesh, Siavash
AU - Di Felice, Renzo
AU - Van der Bruggen, Bart
PY - 2019/3/15
Y1 - 2019/3/15
N2 - This study focuses on improving the CO2/N2 separation performance of Matrimid thorough homogeneous blending with Rhodeftal, a new commercial high performance polymer recently introduced into the market. The membrane blends were characterized using differential scanning calorimetry (DSC) and Fourier-transform infrared spectroscopy (FTIR) to investigate the miscibility and inter-molecular interactions between the two polymers. The DSC results showed a single glass transition temperature (Tg) between those of the individual polymers, which is a confirmation that Matrimid and Rhodeftal are miscible at molecular level. The FTIR spectra indicated strong inter-molecular interactions in this blend system. A lab-made gas permeation setup was used to evaluate the separation performance of membrane blends at different pressures. Similarly, fractional free volume (FFV) of the membrane blends was measured in order to explain gas separation results. Moreover, the plasticization behavior of the membrane blends was analyzed by pure CO2 measurements at different pressures. The results demonstrate that the blend system has significantly improved plasticization resistance to pressures up to 20 bar. In addition, when the Rhodeftal content increases, the selectivity significantly increases, whereas the permeability slightly decreases.
AB - This study focuses on improving the CO2/N2 separation performance of Matrimid thorough homogeneous blending with Rhodeftal, a new commercial high performance polymer recently introduced into the market. The membrane blends were characterized using differential scanning calorimetry (DSC) and Fourier-transform infrared spectroscopy (FTIR) to investigate the miscibility and inter-molecular interactions between the two polymers. The DSC results showed a single glass transition temperature (Tg) between those of the individual polymers, which is a confirmation that Matrimid and Rhodeftal are miscible at molecular level. The FTIR spectra indicated strong inter-molecular interactions in this blend system. A lab-made gas permeation setup was used to evaluate the separation performance of membrane blends at different pressures. Similarly, fractional free volume (FFV) of the membrane blends was measured in order to explain gas separation results. Moreover, the plasticization behavior of the membrane blends was analyzed by pure CO2 measurements at different pressures. The results demonstrate that the blend system has significantly improved plasticization resistance to pressures up to 20 bar. In addition, when the Rhodeftal content increases, the selectivity significantly increases, whereas the permeability slightly decreases.
KW - Inter-molecular interactions
KW - Matrimid
KW - Miscibility
KW - Plasticization
KW - Rhodeftal
UR - http://www.scopus.com/inward/record.url?scp=85059592005&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85059592005&partnerID=8YFLogxK
U2 - 10.1016/j.memsci.2018.12.060
DO - 10.1016/j.memsci.2018.12.060
M3 - Article
VL - 574
SP - 318
EP - 324
JO - Jornal of Membrane Science
JF - Jornal of Membrane Science
SN - 0376-7388
ER -