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Mixed ionic-electronic conductors based on PEDOT:PolyDADMA and organic ionic plastic crystals

Olmo, Rafael Del, Casado, Nerea, Olmedo-Martínez, Jorge L, Wang, Xiaoen and Forsyth, Maria 2020, Mixed ionic-electronic conductors based on PEDOT:PolyDADMA and organic ionic plastic crystals, Polymers, vol. 12, no. 9, pp. 1-18, doi: 10.3390/polym12091981.

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Title Mixed ionic-electronic conductors based on PEDOT:PolyDADMA and organic ionic plastic crystals
Author(s) Olmo, Rafael Del
Casado, Nerea
Olmedo-Martínez, Jorge L
Wang, XiaoenORCID iD for Wang, Xiaoen orcid.org/0000-0001-7713-7062
Forsyth, MariaORCID iD for Forsyth, Maria orcid.org/0000-0002-4273-8105
Journal name Polymers
Volume number 12
Issue number 9
Article ID 1981
Start page 1
End page 18
Total pages 18
Publisher MDPI
Place of publication Basel, Switzerland
Publication date 2020-09
ISSN 2073-4360
2073-4360
Keyword(s) Science & Technology
Physical Sciences
Polymer Science
mixed ionic electronic conductors
polyelectrolytes
organic ionic plastic crystals
conducting polymers
Summary Mixed ionic-electronic conductors, such as poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) are postulated to be the next generation materials in energy storage and electronic devices. Although many studies have aimed to enhance the electronic conductivity and mechanical properties of these materials, there has been little focus on ionic conductivity. In this work, blends based on PEDOT stabilized by the polyelectrolyte poly(diallyldimethylammonium) (PolyDADMA X) are reported, where the X anion is either chloride (Cl), bis(fluorosulfonyl)imide (FSI), bis(trifluoromethylsulfonyl)imide (TFSI), triflate (CF3SO3) or tosylate (Tos). Electronic conductivity values of 0.6 S cm−1 were achieved in films of PEDOT:PolyDADMA FSI (without any post-treatment), with an ionic conductivity of 5 × 10−6 S cm−1 at 70 °C. Organic ionic plastic crystals (OIPCs) based on the cation N-ethyl-N-methylpyrrolidinium (C2mpyr+) with similar anions were added to synergistically enhance both electronic and ionic conductivities. PEDOT:PolyDADMA X / [C2mpyr][X] composites (80/20 wt%) resulted in higher ionic conductivity values (e.g., 2 × 10−5 S cm−1 at 70 °C for PEDOT:PolyDADMA FSI/[C2mpyr][FSI]) and improved electrochemical performance versus the neat PEDOT:PolyDADMA X with no OIPC. Herein, new materials are presented and discussed including new PEDOT:PolyDADMA and organic ionic plastic crystal blends highlighting their promising properties for energy storage applications.
Language eng
DOI 10.3390/polym12091981
Indigenous content off
Field of Research 091205 Functional Materials
091209 Polymers and Plastics
091299 Materials Engineering not elsewhere classified
03 Chemical Sciences
09 Engineering
Socio Economic Objective 850602 Energy Storage (excl. Hydrogen)
HERDC Research category C1 Refereed article in a scholarly journal
Free to Read? Yes
Persistent URL http://hdl.handle.net/10536/DRO/DU:30141392

Document type: Journal Article
Collections: Institute for Frontier Materials
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.