Gas Separation Performance of Polycarbonate Membranes Modified With Multifunctional Low Molecular‐Weight Additives

2006 ◽  
Vol 41 (9) ◽  
pp. 1813-1828 ◽  
Author(s):  
D. Şen ◽  
H. Kalıpçılar ◽  
L. Yılmaz
Keyword(s):  
Molecular Weight ◽  
Gas Separation ◽  
Low Molecular Weight ◽  
Separation Performance ◽  
Polycarbonate Membranes ◽  
Gas Separation Performance

scholarly journals Molecular Weight and Gas Separation Performance of Polyimide Membrane: Insight into Role of Imidization Route

2020 ◽  
Vol 24 (3) ◽  
Author(s):  
P. C. Tan ◽  
D. Y. Yiauw ◽  
G. H. Teoh ◽  
S. C. Low ◽  
Z. A. Jawad
Keyword(s):  
Molecular Weight ◽  
Gas Separation ◽  
Separation Performance ◽  
Synthesis Conditions ◽  
Polyimide Membrane ◽  
Gas Transport Properties ◽  
Thermal Imidization ◽  
Insight Into ◽  
Gas Separation Performance

Various methods have been explored to improve the gas separation performance of polyimide membrane for more viable industrial commercialization. Generally, polyimide membrane can be synthesized via two different methods: chemical imidization and thermal imidization routes. Due to the markedly different membrane synthesis conditions, the influence of imidization methods on the gas transport properties of resulting membrane is worthy of investigation. The polyimide produced from two imidization methods was characterized for its molecular weight. In overall, the molecular weight of thermally imidized polyimide was higher than that of chemically imidized one except ODPA-6FpDA:DABA as it was prone to depropagation at high temperature. It was observed that the chemically imidized ODPA-6FpDA:DABA membrane possessed better gas separation performance than the thermally imidized counterpart. In particular, it showed 12 times higher CO2 permeability (19.21 Barrer) with CO2/N2 selectivity of 5. After crosslinking, the CO2/N2 selectivity of the polyimide membrane was further improved to 11.8 at 6 bar of permeation pressure.

Characterization of morphology and gas separation performance of dry-cast polycarbonate membranes

2012 ◽  
Vol 53 (8) ◽  
pp. 1623-1630 ◽  
Author(s):  
Ywu-Jang Fu ◽  
Jung-Tsai Chen ◽  
Chun-Chieh Chen ◽  
Kuo-Sung Liao ◽  
Chien-Chieh Hu ◽  
...  
Keyword(s):  
Gas Separation ◽  
Separation Performance ◽  
Polycarbonate Membranes ◽  
Gas Separation Performance

scholarly journals The spirobichroman-based polyimides with different side groups: from structure–property relationships to chain packing and gas transport performance

RSC Advances ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 5086-5095
Author(s):  
Shuli Wang ◽  
Xiaohua Tong ◽  
Chunbo Wang ◽  
Xiaocui Han ◽  
Sizhuo Jin ◽  
...  
Keyword(s):  
Dihedral Angle ◽  
Gas Separation ◽  
Gas Transport ◽  
Critical Role ◽  
Polymer Membranes ◽  
Separation Performance ◽  
Structure Property ◽  
Chain Packing ◽  
Structure Property Relationships ◽  
Gas Separation Performance

Effect of substituents on the dihedral angle and chain packing plays a critical role in the enhancement in the gas separation performance of polymer membranes.

scholarly journals Gas separation performance of copolymers of perfluoro(butenyl vinyl ether) and perfluoro(2,2-dimethyl-1,3-dioxole)

2021 ◽  
pp. 119401
Author(s):  
Moataz Ali El-Okazy ◽  
Liang Liu ◽  
Christopher P. Junk ◽  
Erich Kathmann ◽  
Whitney White ◽  
...  
Keyword(s):  
Vinyl Ether ◽  
Gas Separation ◽  
Separation Performance ◽  
Gas Separation Performance

Temperature-induced formation of cellulose nanofiber film with remarkably high gas separation performance

Cellulose ◽  
2017 ◽  
Vol 24 (12) ◽  
pp. 5649-5656 ◽  
Author(s):  
Xiong-Fei Zhang ◽  
Yi Feng ◽  
Chaobo Huang ◽  
Yichang Pan ◽  
Jianfeng Yao
Keyword(s):  
Gas Separation ◽  
Cellulose Nanofiber ◽  
Separation Performance ◽  
Nanofiber Film ◽  
Gas Separation Performance
Sign in / Sign up

Export Citation Format

Share Document