scholarly journals A high-performance hydroxyl-functionalized polymer of intrinsic microporosity for an environmentally attractive membrane-based approach to decontamination of sour natural gas

2015 ◽  
Vol 3 (45) ◽  
pp. 22794-22806 ◽  
Author(s):  
Shouliang Yi ◽  
Xiaohua Ma ◽  
Ingo Pinnau ◽  
William J. Koros
Keyword(s):  
Natural Gas ◽  
High Performance ◽  
Gas Separations ◽  
P Sorption ◽  
Polymer Of Intrinsic Microporosity ◽  
Intrinsic Microporosity ◽  
Permeation Properties

Sorption and permeation properties of a hydroxyl-functionalized polymer with intrinsic microporosity are reported for aggressive sour natural gas separations.

scholarly journals A highly rigid and gas selective methanopentacene-based polymer of intrinsic microporosity derived from Tröger's base polymerization

2018 ◽  
Vol 6 (14) ◽  
pp. 5661-5667 ◽  
Author(s):  
Rhodri Williams ◽  
Luke. A. Burt ◽  
Elisa Esposito ◽  
Johannes C. Jansen ◽  
Elena Tocci ◽  
...  
Keyword(s):  
High Selectivity ◽  
Gas Separations ◽  
Structural Units ◽  
Polymer Of Intrinsic Microporosity ◽  
Troger's Base ◽  
Intrinsic Microporosity

A Polymer of Intrinsic Microporosity (PIM) constructed using exceptionally rigid methanopentacene structural units demonstrates high selectivity for gas separations.

Controlled Superacid-Catalyzed Self-Cross-Linked Polymer of Intrinsic Microporosity for High-Performance CO2 Separation

2020 ◽  
Vol 53 (18) ◽  
pp. 7988-7996
Author(s):  
Shengyang Zhou ◽  
Yuxuan Sun ◽  
Boxin Xue ◽  
Shenghai Li ◽  
Jifu Zheng ◽  
...  
Keyword(s):  
High Performance ◽  
Co2 Separation ◽  
Polymer Of Intrinsic Microporosity ◽  
Intrinsic Microporosity

scholarly journals CTF-based soft touch actuator for playing electronic piano

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Manmatha Mahato ◽  
Rassoul Tabassian ◽  
Van Hiep Nguyen ◽  
Saewoong Oh ◽  
Sanghee Nam ◽  
...  
Keyword(s):  
High Performance ◽  
Artificial Muscles ◽  
Flexible Electrode ◽  
Peak Displacement ◽  
Soft Actuator ◽  
Response Characteristics ◽  
Polymer Of Intrinsic Microporosity ◽  
Human Finger ◽  
Physical And Chemical ◽  
Intrinsic Microporosity

Abstract In the field of bioinspired soft robotics, to accomplish sophisticated tasks in human fingers, electroactive artificial muscles are under development. However, most existing actuators show a lack of high bending displacement and irregular response characteristics under low input voltages. Here, based on metal free covalent triazine frameworks (CTFs), we report an electro-ionic soft actuator that shows high bending deformation under ultralow input voltages that can be implemented as a soft robotic touch finger on fragile displays. The as-synthesized CTFs, derived from a polymer of intrinsic microporosity (PIM-1), were combined with poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT-PSS) to make a flexible electrode for a high-performance electro-ionic soft actuator. The proposed soft touch finger showed high peak-to-peak displacement of 17.0 mm under ultralow square voltage of ±0.5 V, with 0.1 Hz frequency and 4 times reduced phase delay in harmonic response compared with that of a pure PEDOT-PSS-based actuator. The significant actuation performance is mainly due to the unique physical and chemical configurations of CTFs electrode with highly porous and electrically conjugated networks. On a fragile display, the developed soft robotic touch finger array was successfully used to perform soft touching, similar to that of a real human finger; device was used to accomplish a precise task, playing electronic piano.

Molecular Modeling and Gas Permeation Properties of a Polymer of Intrinsic Microporosity Composed of Ethanoanthracene and Tröger’s Base Units

2014 ◽  
Vol 47 (22) ◽  
pp. 7900-7916 ◽  
Author(s):  
Elena Tocci ◽  
Luana De Lorenzo ◽  
Paola Bernardo ◽  
Gabriele Clarizia ◽  
Fabio Bazzarelli ◽  
...  
Keyword(s):  
Molecular Modeling ◽  
Gas Permeation ◽  
Polymer Of Intrinsic Microporosity ◽  
Troger's Base ◽  
Intrinsic Microporosity ◽  
Base Units ◽  
Permeation Properties

scholarly journals Ultraselective glassy polymer membranes with unprecedented performance for energy-efficient sour gas separation

2019 ◽  
Vol 5 (5) ◽  
pp. eaaw5459 ◽  
Author(s):  
Shouliang Yi ◽  
Bader Ghanem ◽  
Yang Liu ◽  
Ingo Pinnau ◽  
William J. Koros
Keyword(s):  
Natural Gas ◽  
Energy Efficient ◽  
Polymeric Membranes ◽  
Separation Performance ◽  
Permeable Membrane ◽  
Gas Streams ◽  
Polar Groups ◽  
Polymer Of Intrinsic Microporosity ◽  
Intrinsic Microporosity ◽  
Sour Gas

Membrane-based separation of combined acid gases carbon dioxide and hydrogen sulfide from natural gas streams has attracted increasing academic and commercial interest. These feeds are referred to as “sour,” and herein, we report an ultra H2S-selective and exceptionally permeable glassy amidoxime-functionalized polymer of intrinsic microporosity for membrane-based separation. A ternary feed mixture (with 20% H2S:20% CO2:60% CH4) was used to demonstrate that a glassy amidoxime-functionalized membrane provides unprecedented separation performance under challenging feed pressures up to 77 bar. These membranes show extraordinary H2S/CH4 selectivity up to 75 with ultrahigh H2S permeability >4000 Barrers, two to three orders of magnitude higher than commercially available glassy polymeric membranes. We demonstrate that the postsynthesis functionalization of hyper-rigid polymers with appropriate functional polar groups provides a unique design strategy for achieving ultraselective and highly permeable membrane materials for practical natural gas sweetening and additional challenging gas pair separations.

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