Polymers with n-type nitroxide side groups: Synthesis and electrochemical characterization

Jähnert, Thomas; Janoschka, Tobias; Hager, Martin D.; Schubert, Ulrich S.

doi:10.1016/j.eurpolymj.2014.06.007

Cited by 17 publications

(10 citation statements)

References 22 publications

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“…[26][27][28][29] The annealing thus allows for getting thin films [26][27][28][29] The annealing thus allows for getting thin films…”

Section: Self-assembly Of Ptma-b-ps In Thin Filmsmentioning

confidence: 99%

“…[26][27][28][29] Two distinct annealing methods are mostly used to reach these goals. Furthermore, a careful control of the annealing conditions can allow the control of the orientation of the nanodomains in the thin films.…”

Section: Self-assembly Of Ptma-b-ps In Thin Filmsmentioning

confidence: 99%

“…PTMA has been originally studied as cathode material by Hasegawa et al 6 in 2002 with further developments being proposed by Nishide and Suga. [22][23][24][25][26] The recent developments in controlled radical polymerization (CRP) techniques for the polymerization of TMPM has allowed the synthesis of well-defined PTMA with controlled molar mass and molar mass dispersity (Ð M ) lower than 1.5. [9][10][11][12][13][14] Beside PTMA, many other redox polymers have been considered as potential candidates for ORBs.…”

Section: Introductionmentioning

confidence: 99%

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Nanostructured organic radical cathodes from self-assembled nitroxide-containing block copolymer thin films

et al. 2015

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This contribution describes the formation of nanostructured thin film organic radical cathodes. First, the self-assembly of poly(styrene)-block-poly(2,2,6,6-tetramethylpiperidinyloxy-4-yl methacrylate) (PTMA-b-PS) diblock copolymers is detailed. In order to improve the nano-morphology of the immiscible PTMA and PS domains, the effect of thermal and solvent annealing is investigated. The formation of thin films with different morphologies such as cylindrical or lamellar nanostructures is observed depending on the processing conditions. The electrochemical properties of the nanostructured films are further investigated to assess the redox activity of the PTMA domains. Cyclic voltammetry of PTMA-b-PS diblock copolymers, either in dissolved or thin film supported configuration, confirms the reversible redox behavior of the nitroxide radical. Galvanostatic cycling of the thin film nanostructured cathodes reveals good capacity retention with fast charge/discharge response resulting from efficient charge and ion transfer as well as structural integrity. Such nanostructured organic radical cathodes provide opportunities for the fabrication of new generation nanostructured organic radical battery architectures.

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“…[26][27][28][29] The annealing thus allows for getting thin films [26][27][28][29] The annealing thus allows for getting thin films…”

Section: Self-assembly Of Ptma-b-ps In Thin Filmsmentioning

confidence: 99%

Section: Self-assembly Of Ptma-b-ps In Thin Filmsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Nanostructured organic radical cathodes from self-assembled nitroxide-containing block copolymer thin films

et al. 2015

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“…The radical polymer syntheses discussed to this point have dealt exclusively with TEMPO‐like radical groups; however, several other open‐shell functionalities are accessible for radical polymer systems. For example, several studies have covalently‐bound nitroxide radicals to phenyl rings (Scheme ) . In one of these studies, pentafluorostyrene was treated with excess tert ‐butylamine to form N ‐ (tert ‐butyl)−2,3,5,6‐tetrafluoro‐4‐vinylaniline (NTTV).…”

Section: Radical Polymersmentioning

confidence: 99%

Recent advances in the syntheses of radical-containing macromolecules

Wingate

Boudouris

2016

J. Polym. Sci. Part A: Polym. Chem.

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Tailor-made polymers containing specific chemical functionalities have ushered in a number of emerging fields in polymer science. In most of these next-generation applications the focus of the community has centered upon closed-shell macromolecules. Conversely, macromolecules containing stable radical sites have been less studied despite the promise of this evolving class of polymers. In particular, radical-containing macromolecules have shown great potential in magnetic, energy storage, and biomedical applications. Here, the progress regarding the syntheses of open-shell containing polymers are reviewed in two distinct subclasses. In the first, the syntheses of radical polymers (i.e., materials composed of nonconjugated macromolecular backbones and with open-shell units present on the polymer pendant sites) are described. In the second, polyradical (i.e., macromolecules containing stabi-lized radical sites either within the macromolecular backbone or those containing radical sites that are stabilized through a large degree of conjugation) synthetic schemes are presented. Thus, the state-of-the-art in open-shell macromolecular syntheses will be reported and future means by which to advance the current archetype will be discussed. By detailing the synthetic pathways possible for, and the inherent synthetic limitations of, the creation of these functional polymers, the community will be able to extend the bounds of the radical-containing macromolecular paradigm.

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“…Regular AROP, initiated by t-BuOK, only yielded oligomers with low radical densities. 101 The polymerizations were initiated by 2-methyl-2-phenyloxirane and titanium tetrachloride TiCl4 as the coinitiator and 2,6-di-tert-butylpyridine as a proton trap, reaching molecular weights of up to 11 400 g mol -1 . The polymers' electrochemical properties with regard to the reversible reduction of nitroxides were investigated to gauge their suitability as n-type electrode materials.…”

Section: Anionic Polymerizationmentioning

confidence: 99%

Synthesis of Novel Nitroxide Radical Polymer Materials for Imaging and Energy Storage Applications

Hansen¹

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Polymers with n-type nitroxide side groups: Synthesis and electrochemical characterization

Cited by 17 publications

References 22 publications

Nanostructured organic radical cathodes from self-assembled nitroxide-containing block copolymer thin films

Nanostructured organic radical cathodes from self-assembled nitroxide-containing block copolymer thin films

Recent advances in the syntheses of radical-containing macromolecules

Synthesis of Novel Nitroxide Radical Polymer Materials for Imaging and Energy Storage Applications

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