The impact of the molecular weight on the electrochemical properties of poly(TEMPO methacrylate)

Zhang, Kai, Hu, Yuxiang, Wang, Lianzhou, Fan, Jiyu, Monteiro, Michael J. and Jia, Zhongfan (2017) The impact of the molecular weight on the electrochemical properties of poly(TEMPO methacrylate). Polymer Chemistry, 8 11: 1815-1823. doi:10.1039/c7py00151g


Author Zhang, Kai
Hu, Yuxiang
Wang, Lianzhou
Fan, Jiyu
Monteiro, Michael J.
Jia, Zhongfan
Title The impact of the molecular weight on the electrochemical properties of poly(TEMPO methacrylate)
Journal name Polymer Chemistry   Check publisher's open access policy
ISSN 1759-9962
1759-9954
Publication date 2017-03-21
Year available 2017
Sub-type Article (original research)
DOI 10.1039/c7py00151g
Open Access Status Not yet assessed
Volume 8
Issue 11
Start page 1815
End page 1823
Total pages 9
Place of publication Cambridge, United Kingdom
Publisher Royal Society of Chemistry
Language eng
Subject 1502 Bioengineering
1303 Biochemistry
2507 Polymers and Plastics
1605 Organic Chemistry
Abstract Synthesis of TEMPO-containing polymers by 'living' radical polymerization provides opportunities to investigate the impact of the molecular weight on their electrochemical properties. In this work, we utilized single electron transfer-living radical polymerization (SET-LRP) to synthesize poly(2,2,6,6-tetra-methylpiperidine methacrylate) (PTMPM) with degrees of polymerization ranging from 66 to 703, and after oxidation producing poly(TEMPO methacrylate) (PTMA) with the highest molecular weight of 169 kDa and dispersity of 1.35. Three different techniques were used to quantify the radical density and calculate the theoretical capacity of PTMA polymers. These PTMA polymers, as active materials with 25 wt% in the electrode composite, showed strong molecular weight dependence on the electrochemical properties. The higher molecular weight PTMA polymers showed higher specific discharging capacities and better cycling stability due to their lower solubility in the electrolyte.
Keyword Organic Radical Battery
Cathode-Active Material
Polymer-Cathode
Charge-Storage
4-Methacryloyl Derivatives
Anionic-Polymerization
Nitroxide Polymers
Electronic Devices
Stable Radicals
Redox Reaction
Q-Index Code C1
Q-Index Status Provisional Code
Grant ID DP140103497
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
HERDC Pre-Audit
Australian Institute for Bioengineering and Nanotechnology Publications
 
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