Modification of polystyrene maleic anhydride for efficient energy storage applications

The development of new energy storage devices has been gaining momentum in the wake of the energy crisis faced worldwide. New materials have been tried and tested and efforts have been made to implement these materials to the commercial arena. Conducting polymers have been used and new polymeric str...

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Bibliographic Details
Published in:Journal of solid state electrochemistry 2021-01, Vol.25 (1), p.327-337
Main Authors: Chakraborty, Sohini, Simon, Remya, Mary, N. L.
Format: Article
Language:English
Subjects:
Analytical Chemistry
Capacitance
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Condensed Matter Physics
Conducting polymers
Copolymers
Electrochemical analysis
Electrochemistry
Energy Storage
Maleic anhydride
Methylene dianiline
Original Paper
Physical Chemistry
Polystyrene resins
Thiadiazoles
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Summary:The development of new energy storage devices has been gaining momentum in the wake of the energy crisis faced worldwide. New materials have been tried and tested and efforts have been made to implement these materials to the commercial arena. Conducting polymers have been used and new polymeric structures have been designed in this respect. Here, we have modified styrene maleic anhydride (SMA) copolymer with two different moieties, i.e. 2-amino-5-mercapto-1,3,4-thiadiazole (AMT) and 4,4-diaminodiphenylmethane (DDM) with an aim to study their electrochemical characteristics in details. The modifications were expected to greatly improve the electrochemical performance of an otherwise feebly conducting polymer. Both the modified copolymers were characterised using UV-visible and FTIR spectroscopic techniques and scanning electron microscopy. Their electrochemical properties were studied using cyclic voltammetry, chronopotentiometry and AC impedance techniques. These materials exhibited a significant enhancement in their specific capacitance when compared with SMA. SMA represents a specific capacitance of 24.5 F g −1 whereas AMT-modified copolymer SMA-1 exhibited a specific capacitance of 149 F g −1 and DDM-modified copolymer SMA-2 exhibited a specific capacitance of 124.45 F g −1 . Thus, the results clearly indicated a considerable increase in the values of capacitance of SMA after the modification was performed. Graphical abstract
ISSN:1432-8488
1433-0768
DOI:10.1007/s10008-020-04797-7