scholarly journals Electrical conductivity, ionic conductivity, optical absorption, and gas separation properties of ionically conductive polymer membranes embedded with Si microwire arrays

2011 ◽  
Vol 4 (5) ◽  
pp. 1772 ◽  
Author(s):  
Joshua M. Spurgeon ◽  
Michael G. Walter ◽  
Junfeng Zhou ◽  
Paul A. Kohl ◽  
Nathan S. Lewis
Keyword(s):  
Electrical Conductivity ◽  
Ionic Conductivity ◽  
Optical Absorption ◽  
Gas Separation ◽  
Conductive Polymer ◽  
Polymer Membranes

Gas Separation through Conductive Polymer Membranes. 2. Polyaniline Membranes with High Oxygen Selectivity

1999 ◽  
Vol 38 (5) ◽  
pp. 1917-1924 ◽  
Author(s):  
Young Moo Lee ◽  
Seong Yong Ha ◽  
Yeon Keun Lee ◽  
Dong Hack Suh ◽  
Sung Yeon Hong
Keyword(s):  
Gas Separation ◽  
Conductive Polymer ◽  
Polymer Membranes ◽  
High Oxygen ◽  
Oxygen Selectivity

Chitosan/Polyethylene Oxide (PEO) Filled Carbonized Wood Fiber Conductive Composite Film

2020 ◽  
Vol 1010 ◽  
pp. 638-644
Author(s):  
Mohd Pisal Mohd Hanif ◽  
Abd Jalil Jalilah ◽  
Mohd Fadzil Hanim Anisah ◽  
Arumugam Tilagavathy
Keyword(s):  
Electrical Conductivity ◽  
Tensile Strength ◽  
Polyethylene Oxide ◽  
Biomedical Applications ◽  
Wood Fiber ◽  
Conductive Polymer ◽  
Renewable Resource ◽  
Blend Films ◽  
Conductive Composite Film ◽  
Carbonized Wood

Biopolymer-based conductive polymer composites (CPCs) would open up various possibilities in biomedical applications owing to ease of processing, renewable resource and environmentally friendly. However, low mechanical properties are a major issue for their applications. In this study, the investigated the conductivity of chitosan/ PEO blend films filled with carbonized wood fiber (CWF) prepared by solution casting. The effect of CWF was also investigated on tensile properties and their morphological surfaces. The tensile results from different ratios of chitosan/PEO blend films without CWF show that the tensile strength and modulus increased with the increase of chitosan content and chitosan/PEO blend film with 70/30 ratio exhibited the best combination of tensile strength and flexibility. However, a reduction of tensile strength was observed when CWF amount was increased while the modulus of the tensile shows an increment. The film also exhibited higher electrical conductivity as compared to low chitosan ratio. The addition of CWF greatly enhanced the conductivity three-fold from 10-10 to 10-6 S/cm. The electrical conductivity continued to increase with the increase of CWF up to 30wt%. The surface morphology by Scanning Electron Microscopy (SEM) exhibits the absence of phase separation for the blends indicating good miscibility between the PEO and chitosan. Incorporation of CWF into the blend films at 5wt% showed agglomeration. However, the increase of CWF created larger agglomerations that formed conductive pathways resulting in improved conductivity. FTIR analysis suggested that intermolecular interactions occurred between chitosan and PEO while CWF interacts more with the protons of PEO.

Electrical conductivity and rheological properties of carbon black based conductive polymer composites prior to and after annealing

2021 ◽  
pp. 096739112110012
Author(s):  
Qingsen Gao ◽  
Jingguang Liu ◽  
Xianhu Liu
Keyword(s):  
Electrical Conductivity ◽  
Carbon Black ◽  
Percolation Threshold ◽  
Rheological Properties ◽  
Network Formation ◽  
Loss Modulus ◽  
Conductive Polymer ◽  
Complex Viscosity ◽  
Electrical Percolation ◽  
Electrical Percolation Threshold

The effect of annealing on the electrical and rheological properties of polymer (poly (methyl methacrylate) (PMMA) and polystyrene (PS)) composites filled with carbon black (CB) was investigated. For a composite with CB content near the electrical percolation threshold, the formation of conductive pathways during annealing has a significant impact on electrical conductivity, complex viscosity, storage modulus and loss modulus. For the annealed samples, a reduction in the electrical and rheological percolation threshold was observed. Moreover, a simple model is proposed to explain these behaviors. This finding emphasizes the differences in network formation with respect to electrical or rheological properties as both properties belong to different physical origins.

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 Radiolytic synthesis and characterization of PVA and chitosan based conductive polymer membranes for alkaline fuel cells

Tehnika ◽  
2014 ◽  
Vol 69 (2) ◽  
pp. 190-195
Author(s):  
Ivan D. Stoševski ◽  
Jelena I. Krstić ◽  
Nikola Č. Vokić ◽  
Zorica M. Kačarević-Popović ◽  
Šćepan S. Miljanić
Keyword(s):  
Fuel Cells ◽  
Conductive Polymer ◽  
Polymer Membranes ◽  
Synthesis And Characterization ◽  
Alkaline Fuel Cells ◽  
Radiolytic Synthesis

Conductive polymer membranes

2002 ◽  
Vol 188 (1) ◽  
pp. 1-12 ◽  
Author(s):  
J. Sarrazin ◽  
M. Persin ◽  
M. Cretin
Keyword(s):  
Conductive Polymer ◽  
Polymer Membranes
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