Synthesis, characterization, electrical and dielectrical studies of Polypyrrole-Sn(IV)arsenotungstate nanocomposite ion-exchange membrane: Its selectivity as Ba(II)

Khan, Asif Ali; Ahmad, Rais; Zeeshan, Mohd; Shaheen, Shakeeba

doi:10.1016/j.molliq.2016.06.073

Cited by 5 publications

(4 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These results might indicate that thermal stability of F-M was slightly improved with increasing sulfonation reaction time. Given the modest operating temperature for desalination using electrodialysis, F-M demonstrated sufficient thermal stability to meet the requirements, which was comparable to many other kinds of cation exchange membranes. ,, …”

Section: Resultsmentioning

confidence: 99%

Section: Water Contact Angle Water Uptake and Conductivitymentioning

confidence: 99%

“…Given the modest operating temperature for desalination using electrodialysis, F-M demonstrated sufficient thermal stability to meet the requirements, which was comparable to many other kinds of cation exchange membranes. 16,18,49 4. CONCLUSIONS In this work, we proposed a novel methodology for making high ion-exchange capacity cation exchange membranes using porous polypropylene as membrane support and sulfonated polystyrene as functional polymers.…”

Section: Membrane Chemical Structurementioning

confidence: 99%

“…13 Also, the widely used carcinogenic reagent (i.e., chloromethyl ether) was avoided during the preparation process. 14 However, many methods or procedures have one or more of the following issues: use of organic solvents, 15,16 use of additional chemicals to improve solubility of effective reactants or functional components, 17 heterogeneous casting solution, 18 complicated procedures, 19 reduced membrane long-term stability, 20 etc. This paper aimed to provide a solution to these issues.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

High Ion-Exchange Capacity Semihomogeneous Cation Exchange Membranes Prepared via a Novel Polymerization and Sulfonation Approach in Porous Polypropylene

Jiang

2017

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Semihomogeneous cation exchange membranes with superior ion exchange capacity (IEC) were synthesized via a novel polymerization and sulfonation approach in porous polypropylene support. The IEC of membranes could reach up to 3 mmol/g because of high mass ratio of functional polymer to membrane support. Especially, theoretical IEC threshold value agreed well with experimental threshold value, indicating that IEC could be specifically designed without carrying out extensive experiments. Also, sulfonate groups were distributed both on membrane surface and across the membranes, which corresponded well with high IEC of the synthesized membranes. In addition, the semifinished membrane showed hydrophobic property because of the formation of polystyrene. In contrast, the final membranes demonstrated super hydrophilic property, indicating the adequate sulfonation of polystyrene. Furthermore, when sulfonation reaction time increased, the conductivity of membranes also showed a tendency to increase, revealing the positive relationship between conductivity and IEC. Finally, the final membranes showed sufficient thermal stability for electrodialysis applications such as water desalination.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Water Contact Angle Water Uptake and Conductivitymentioning

confidence: 99%