NANOCOMPOSITE POLYMER MEMBRANE BASED ON CATION EXCHANGE POLYMER AND NANO-DISPERSED CLAY SHEETS

2003 ◽  
Vol 407 (1) ◽  
pp. 15-23 ◽  
Author(s):  
Min-Kyu Song ◽  
Seung-Bae Park ◽  
Young-Taek Kim ◽  
Hee-Woo Rhee ◽  
Jinhwan Kim
Keyword(s):  
Cation Exchange ◽  
Polymer Membrane ◽  
Nanocomposite Polymer

A high-performance BaTiO3-grafted-GO-laden poly(ethylene oxide)-based membrane as an electrolyte for all-solid lithium-batteries

2017 ◽  
Vol 1 (2) ◽  
pp. 269-277 ◽  
Author(s):  
N. Angulakshmi ◽  
Goutam Prasanna Kar ◽  
Suryasarathi Bose ◽  
E. Bhoje Gowd ◽  
Sabu Thomas ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Barium Titanate ◽  
Ethylene Oxide ◽  
Lithium Batteries ◽  
High Performance ◽  
Polymer Membrane ◽  
Hot Press ◽  
Nanocomposite Polymer ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

Nanocomposite polymer membrane comprising poly(ethylene oxide), barium titanate-grafted-graphene oxide and lithium bis(trifluoromethanesulfonyl imide) as an electrolyte for all-solid lithium batteries were prepared by a simple hot-press technique.

Physical and Charge-Discharge behavior of Facile PVdF-co-HFP Nanocomposite Polymer Electrolyte for Lithium Ion Polymer Batteries

2021 ◽  
Author(s):  
VIJAYAKUMAR G ◽  
RAJIV CHANDAR ◽  
Vellaiappillai Tamilavan ◽  
said z ◽  
paramasivam R
Keyword(s):  
Polymer Electrolyte ◽  
Lithium Ion ◽  
Polymer Membrane ◽  
Favorable Effect ◽  
Filler Concentration ◽  
Nanocomposite Polymer ◽  
Microporous Polymer ◽  
Discharge Behavior ◽  
High Degree ◽  
Charge Discharge

Abstract Synthesized wurtzite ZnO nanostructures are incorporated on the poly (vinylidenefluoride-co-hexafluoropropylene) (PVdF- co -HFP) matrix, which improves the thermal behavior of as obtained thin film nanocomposite microporous polymer membrane (nanoCMPM). The nanoCMPM shows a favorable effect on the melting temperature (T m ) 142.9°C. The nanocomposite membranes were characterized by DSC and porosity studies. The nanoCMPM was prepared as a polymer electrolyte in soaking 1.0 M LiClO 4 – DMC+EC (1: 1 v/v ratio) electrolyte solution to get as nanocomposite polymer electrolytes (nanoCMPE). The optimized nanofiller dispersed composite microporous polymer membrane was found to have a high degree of porosity (76%) and excellent film strength than 8-10wt% filler concentration. It shows the ionic conductivity in the order of 10 −3 S cm −1 at room temperature. It has been further evidence from the effect on lithium salt concentration studies. The optimized membrane electrolyte has good compatibility and charge discharge character at 0.5C rate. It has the evidence applicable to perform in lithium ion polymer batteries.

β-Cyclodextrin cation exchange polymer membrane for improved second-generation glucose biosensors

1995 ◽  
Vol 306 (2-3) ◽  
pp. 201-208 ◽  
Author(s):  
Qiang Chen ◽  
Prasad V.A. Pamidi ◽  
Joseph Wang ◽  
Wlodzimierz Kutner
Keyword(s):  
Cation Exchange ◽  
Second Generation ◽  
Polymer Membrane ◽  
Glucose Biosensors

scholarly journals Synthesis, Characterization, and Study of Proton Exchange Polymer Membrane Properties of Sulfonated Copolymer Eugenol-diallyl Phthalate

2020 ◽  
Vol 21 (1) ◽  
pp. 168
Author(s):  
Ngadiwiyana Ngadiwiyana ◽  
Nor Basid Adiwibawa Prasetya ◽  
Gunawan Gunawan ◽  
Tutuk Djoko Kusworo ◽  
Heru Susanto
Keyword(s):  
Cation Exchange ◽  
Proton Conductivity ◽  
Water Uptake ◽  
Cation Exchange Capacity ◽  
Exchange Capacity ◽  
Polymer Membrane ◽  
Proton Exchange ◽  
Membrane Properties ◽  
Diallyl Phthalate ◽  
Ft Ir

Synthesis biopolymer of sulfonated copolymer eugenol-diallyl phthalate (PEGDAF), its characterization, and study of proton exchange polymer membrane properties had been done. This synthesis was conducted by eugenol and diallyl phthalate reaction to form PEGDAF, which is sulfonated using sulfuric acid. In addition, the functional groups of the PEGDAF and its sulfonated form were analyzed using FT-IR. Furthermore, the polymer properties were determined by measuring values of sulfonation degree, cation exchange capacity, proton conductivity, and water uptake. FT-IR spectra showed that the vinyl group had been added to the process of PEGDAF formation, while spectra deconvolution was used to confirm the occurrence of sulfonation reaction. The sulfonation of PEGDAF in 2 h optimum reaction time produces a black solid with a melting point of 133 °C in 16.55% yield. The highest proton conductivity, cation exchange capacity (CEC), and water uptake were 8.334 × 10–6 S cm–1, 0.44 meq/g, and 73.0%, respectively.

The Effect of Calcium and Magnesium on Rabbit Blood Platelet Aggregation in Vitro

1964 ◽  
Vol 12 (01) ◽  
pp. 179-200 ◽  
Author(s):  
Torstein Hovig
Keyword(s):  
Platelet Aggregation ◽  
Cation Exchange ◽  
Calcium Concentration ◽  
Blood Platelets ◽  
Blood Platelet ◽  
Rabbit Blood ◽  
Calcium And Magnesium ◽  
Induced Aggregation ◽  
Blood Platelet Aggregation

SummaryThe effect of calcium and magnesium on the aggregation of rabbit blood platelets in vitro was studied, with the following results:1. Platelet aggregation induced by ADP or collagen could be prevented by EGTA or EDTA. The aggregating effect was restored by recalcification. The effect was also restored by addition of magnesium in EDTA-PRP, but not in EGTA-PRP unless a surplus of calcium was present.2. Calcium remained in concentrations of the order of 0.15–0.25 mM after dialysis or cation exchange of plasma. Aggregation of washed platelets resuspended in such plasma could not be produced with ADP or collagen, unless the calcium concentration was increased or that magnesium was added.3. The adhesiveness of blood platelets to collagen was reduced in EGTA-PRP and EDTA-PRP. Release of ADP from platelets influenced by collagen could not be demonstrated either in EGTA-PRP (presence of magnesium) or in EDTA-PRP.4. It is concluded that calcium is a necessary factor both for the reaction leading to release of ADP and for the the aggregation produced by ADP.5. Thrombin induced aggregation of washed platelets suspended in tris-buffered saline in the presence of calcium. No effect of magnesium could be observed unless small quantities of calcium were present.

Hydrous oxides and their cation-exchange properties

1965 ◽  
Vol 15 (10) ◽  
pp. 445-448 ◽  
Author(s):  
C. Heitner-Wirguin ◽  
A. Albu-Yaron
Keyword(s):  
Cation Exchange ◽  
Hydrous Oxides ◽  
Exchange Properties
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