scholarly journals PIM-1 mixed matrix membranes for gas separations using cost-effective hypercrosslinked nanoparticle fillers

2016 ◽  
Vol 52 (32) ◽  
pp. 5581-5584 ◽  
Author(s):  
Tamoghna Mitra ◽  
Rupesh S. Bhavsar ◽  
Dave J. Adams ◽  
Peter M. Budd ◽  
Andrew I. Cooper
Keyword(s):  
Free Volume ◽  
Glassy Polymer ◽  
Cost Effective ◽  
Gas Separations ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
P Addition ◽  
Matrix Membranes

Addition of a cheap, nanoparticulate, hypercrosslinked polymer “sponge” to the high-free-volume glassy polymer PIM-1 gives mixed matrix membranes with enhanced permeability and improved aging behaviour.

scholarly journals Pyrazine-Fused Porous Graphitic Framework-Based Mixed Matrix Membranes for Enhanced Gas Separations

2020 ◽  
Vol 12 (14) ◽  
pp. 16922-16929 ◽  
Author(s):  
Canghai Ma ◽  
Xinle Li ◽  
Jian Zhang ◽  
Yi Liu ◽  
Jeffrey J. Urban
Keyword(s):  
Gas Separations ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Matrix Membranes

scholarly journals Highly Permeable Mixed Matrix Membranes of Thermally Rearranged Polymers and Porous Polymer Networks for Gas Separations

2021 ◽  
Author(s):  
Carla Aguilar-Lugo ◽  
Won Hee Lee ◽  
Jesús A. Miguel ◽  
José G. de la Campa ◽  
Pedro Prádanos ◽  
...  
Keyword(s):  
Polymer Networks ◽  
Porous Polymer ◽  
Gas Separations ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Matrix Membranes

Development of mixed matrix membranes for gas separations

2021 ◽  
pp. 195-218
Author(s):  
Thiam Leng Chew ◽  
Lanisha Devi Anbealagan ◽  
Yin Fong Yeong ◽  
Qi Hwa Ng ◽  
Siew Hoong Shuit
Keyword(s):  
Gas Separations ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Matrix Membranes

scholarly journals Incorporation of Hybrid Crystalline Microporous Materials in Mixed-Matrix Membranes for Gas Separations

2010 ◽  
Vol 16 (S2) ◽  
pp. 1668-1669 ◽  
Author(s):  
IH Musselman ◽  
E Perez ◽  
MJC Ordoñez ◽  
K Balkus ◽  
J Ferraris
Keyword(s):  
Microporous Materials ◽  
Gas Separations ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Matrix Membranes

Extended abstract of a paper presented at Microscopy and Microanalysis 2010 in Portland, Oregon, USA, August 1 – August 5, 2010.

scholarly journals “All Polyimide” Mixed Matrix Membranes for High Performance Gas Separation

Polymers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1329
Author(s):  
Maijun Li ◽  
Zhibo Zheng ◽  
Zhiguang Zhang ◽  
Nanwen Li ◽  
Siwei Liu ◽  
...  
Keyword(s):  
Free Volume ◽  
Gas Separation ◽  
Network Architecture ◽  
Mixed Matrix Membranes ◽  
High Porosity ◽  
Mixed Matrix ◽  
Fractional Free Volume ◽  
Interfacial Compatibility ◽  
Polyimide Matrix ◽  
Matrix Membranes

To improve the interfacial compatibility of mixed matrix membranes (MMMs) for gas separation, microporous polyimide particle (AP) was designed, synthesized, and introduced into intrinsic microporous polyimide matrix (6FDA-Durene) to form “all polyimide” MMMs. The AP fillers showed the feature of thermal stability, similar density with polyimide matrix, high porosity, high fractional free volume, large microporous dimension, and interpenetrating network architecture. As expected, the excellent interfacial compatibility between 6FDA-Durene and AP without obvious agglomeration even at a high AP loading of 10 wt.% was observed. As a result, the CO2 permeability coefficient of MMM with AP loading as low as 5 wt.% reaches up to 1291.13 Barrer, which is 2.58 times that of the pristine 6FDA-Durene membrane without the significant sacrificing of ideal selectivity of CO2/CH4. The improvement of permeability properties is much better than that of the previously reported MMMs, where high filler content is required to achieve a high permeability increase but usually leads to significant agglomeration or phase separation of fillers. It is believed that the excellent interfacial compatibility between the PI fillers and the PI matrix induce the effective utilization of porosity and free volume of AP fillers during gas transport. Thus, a higher diffusion coefficient of MMMs has been observed than that of the pristine PI membrane. Furthermore, the rigid polyimide fillers also result in the excellent anti-plasticization ability for CO2. The MMMs with a 10 wt.% AP loading shows a CO2 plasticization pressure of 300 psi.

scholarly journals Mixed Matrix Membranes Based on Torlon® and ZIF-8 for High-Temperature, Size-Selective Gas Separations

Membranes ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 982
Author(s):  
Matilde De Pascale ◽  
Francesco Maria Benedetti ◽  
Elsa Lasseuguette ◽  
Maria-Chiara Ferrari ◽  
Kseniya Papchenko ◽  
...  
Keyword(s):  
Room Temperature ◽  
Gas Permeability ◽  
Filler Loading ◽  
Glassy Polymers ◽  
Gas Separations ◽  
Mixed Matrix Membranes ◽  
Size Selectivity ◽  
Mixed Matrix ◽  
Polymer Filler ◽  
Matrix Membranes

Torlon® is a thermally and plasticization-resistant polyamide imide characterized by low gas permeability at room temperature. In this work, we aimed at improving the polymer performance in the thermally-enhanced He/CO2 and H2/CO2 separations, by compounding Torlon® with a highly permeable filler, ZIF-8, to fabricate Mixed Matrix Membranes (MMMs). The effect of filler loading, gas size, and temperature on the MMMs permeability, diffusivity, and selectivity was investigated. The He permeability increased by a factor of 3, while the He/CO2 selectivity decreased by a factor of 2, when adding 25 wt % of ZIF-8 at 65 °C to Torlon®; similar trends were observed for the case of H2. The MMMs permeability and size-selectivity were both enhanced by temperature. The behavior of MMMs is intermediate between the pure polymer and pure filler ones, and can be described with models for composites, indicating that such materials have a good polymer/filler adhesion and their performance could be tailored by acting on the formulation. The behavior observed is in line with previous investigations on MMMs based on glassy polymers and ZIF-8, in similar conditions, and indicates that ZIF-8 can be used as a polymer additive when the permeability is a controlling aspect, with a proper choice of loading and operative temperature.

Zn(II)-modified imidazole containing polyimide/ZIF-8 mixed matrix membranes for gas separations

2020 ◽  
Vol 597 ◽  
pp. 117775 ◽  
Author(s):  
Yanfang Fan ◽  
Huiya Yu ◽  
Shan Xu ◽  
Qinchen Shen ◽  
Haimu Ye ◽  
...  
Keyword(s):  
Gas Separations ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Matrix Membranes
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