Pentiptycene-Based Polyurethane with Enhanced Mechanical Properties and CO2-Plasticization Resistance for Thin Film Gas Separation Membranes

2018 ◽  
Vol 10 (20) ◽  
pp. 17366-17374 ◽  
Author(s):  
Ali Pournaghshband Isfahani ◽  
Morteza Sadeghi ◽  
Kazuki Wakimoto ◽  
Binod Babu Shrestha ◽  
Rouhollah Bagheri ◽  
...  
Keyword(s):  
Thin Film ◽  
Mechanical Properties ◽  
Gas Separation ◽  
Separation Membranes ◽  
Gas Separation Membranes

Polyimide polydimethylsiloxane triblock copolymers for thin film composite gas separation membranes

2014 ◽  
Vol 52 (23) ◽  
pp. 3372-3382 ◽  
Author(s):  
Paul A. Gurr ◽  
Joel M. P. Scofield ◽  
Jinguk Kim ◽  
Qiang Fu ◽  
Sandra E. Kentish ◽  
...  
Keyword(s):  
Thin Film ◽  
Gas Separation ◽  
Triblock Copolymers ◽  
Film Composite ◽  
Thin Film Composite ◽  
Separation Membranes ◽  
Gas Separation Membranes

scholarly journals Tailoring the Thermal and Mechanical Properties of PolyActiveTM Poly(Ether-Ester) Multiblock Copolymers Via Blending with CO2-Phylic Ionic Liquid

Polymers ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 890 ◽  
Author(s):  
Martina Klepić ◽  
Alessio Fuoco ◽  
Marcello Monteleone ◽  
Elisa Esposito ◽  
Karel Friess ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Gas Separation ◽  
Thermal And Mechanical Properties ◽  
Polybutylene Terephthalate ◽  
Topographic Analysis ◽  
Separation Membranes ◽  
Gas Separation Membranes ◽  
Wide Range ◽  
Ether Ester ◽  
Dense Films

The last decade has seen an exponential increase in the number of studies focused on novel applications for ionic liquids (ILs). Blends of polymers with ILs have been proposed for use in fuel cells, batteries, gas separation membranes, packaging, etc., each requiring a set of specific physico-chemical properties. In this work, blends of four grades of the poly(ether-ester) multiblock copolymer PolyActive™ with different concentrations of the CO2-philic 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide [BMIM][Tf2N] were prepared in the form of dense films by a solution casting and solvent evaporation method, in view of their potential use as gas separation membranes for CO2 capture. Depending on the polymer structure, the material properties could be tailored over a wide range by means of the IL content. All samples were dry-feeling, highly elastic self-standing dense films. The microstructure of the blends was studied by scanning electron microscopy with a backscattering detector, able to observe anisotropy in the sample, while a special topographic analysis mode allowed the visualization of surface roughness. Samples with the longest poly(ethylene oxide terephthalate) (PEOT) blocks were significantly more anisotropic than those with shorter blocks, and this heterogeneity increased with increasing IL content. DSC analysis revealed a significant decrease in the melting enthalpy and melting temperature of the crystalline PEOT domains with increasing IL content, forming an amorphous phase with Tg ≈ −50 °C, whereas the polybutylene terephthalate (PBT) phase was hardly affected. This indicates better compatibility of the IL with the polyether phase than the polyester phase. Young’s modulus was highest and most IL-dependent for the sample with the highest PEOT content and PEOT block length, due to its high crystallinity. Similarly, the sample with short PEOT blocks and high PBT content also showed a high modulus and tensile strength, but much lower maximum elongation. This study provides a detailed discussion on the correlation between the morphological, thermal, and mechanical properties of these PolyActive™/[BMIM][Tf2N] blends.

Synthesis and properties of novel polyurethanes based on amino ethers of boric acid for gas separation membranes

RSC Advances ◽  
2015 ◽  
Vol 5 (81) ◽  
pp. 65674-65683 ◽  
Author(s):  
I. M. Davletbaeva ◽  
O. Yu. Emelina ◽  
I. V. Vorotyntsev ◽  
R. S. Davletbaev ◽  
E. S. Grebennikova ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Boric Acid ◽  
Gas Separation ◽  
Separation Membranes ◽  
Gas Separation Membranes

Herein we present the structural and mechanical properties of polyurethanes synthesized from amino ethers of boric acid for gas separation.

Development of Thin-Film Manufacturing Technologies for Solid Oxide Fuel Cells and Gas Separation Membranes

2012 ◽  
Vol 2012 (CICMT) ◽  
pp. 000277-000280
Author(s):  
N.H. Menzler ◽  
F. Han ◽  
T. van Gestel ◽  
W. Schafbauer ◽  
F. Schulze-Küppers ◽  
...  
Keyword(s):  
Thin Film ◽  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Gas Separation ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Separation Membranes ◽  
Gas Separation Membranes ◽  
Membrane Development ◽  
Manufacturing Technologies

The development of solid oxide fuel cells (SOFCs) and gas separation membranes for fossil (fuel?) power plants has previously suffered from cost issues like the manufacturing of the core components including i) the ceramic fuel cell and ii) the ceramic membrane, and from insufficient power density (current density or flow rate) on the stack, module or system level. Forschungszentrum Jülich has been working on SOFC development for 20 years, and on membrane development for 6 years. Both energy-related applications are based on similar materials systems, similar micro-structural features (porous-dense, coarse-fine), comparable application parameters (e.g. high temperature) and are manufactured with similar technologies. In the past the focus laid mostly on basic materials research and proving the functionality of the membranes or fuel cells. Meanwhile, one key topic has been the application of low-cost thin-film high-throughput manufacturing technologies. This includes the fabrication of the supports (mostly tape-casting), the coating with functional layers by ceramics technologies (screen printing, roll coating) and the reduction of sintering steps and temperatures. Additionally special thin-film technologies like sol-gel technique and electron beam evaporation / sputtering have also been applied for functional layers, depending on the functional necessities. The presentation gives an overview regarding the state-of-the-art in SOFC and gas separation membrane development at Forschungszentrum Jülich with an emphasis on the manufacturing technologies, resulting in optimized layer micro-structures and thickness. Additionally it summarizes the electrochemical and permeation data obtained so far.

Application of Thin-Film Manufacturing Technologies to Solid Oxide Fuel Cells and Gas Separation Membranes

2013 ◽  
Vol 10 (3) ◽  
pp. 421-427 ◽  
Author(s):  
Norbert H. Menzler ◽  
Feng Han ◽  
Tim van Gestel ◽  
Wolfgang Schafbauer ◽  
Falk Schulze-Küppers ◽  
...  
Keyword(s):  
Thin Film ◽  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Gas Separation ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Separation Membranes ◽  
Gas Separation Membranes ◽  
Manufacturing Technologies
Sign in / Sign up

Export Citation Format

Share Document