Depolymerizable, adaptive supramolecular polymer nanoparticles and networks

Kaitz, Joshua A.; Possanza, Catherine M.; Song, Yang; Diesendruck, Charles E.; Spiering, A. J. H.; Meijer, E. W.; Moore, Jeffrey S.

doi:10.1039/c3py01690k

Cited by 59 publications

(57 citation statements)

References 54 publications

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“…For example, Alloc-PCl 2 PA-OiPr (10) is more stable than Alloc-PPA-OiPr (7) by approximately 40°C (Fig. 6), as is AcPCl 2 PA-OiPr (11) relative to Ac-PPA-OiPr (8). The data also support the observation that ester-linked end-caps are more stable (by approximately 10°C) than carbonate linked end-caps.…”

Section: Effect Of Electron Withdrawing Groups and End-caps On The Thsupporting

confidence: 80%

End-capped poly(4,5-dichlorophthalaldehyde): a stable self-immolative poly(aldehyde) for translating specific inputs into amplified outputs, both in solution and the solid state

DiLauro

Phillips

2015

Polym. Chem.

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We recently reported that poly(4,5-dichlorophthalaldehyde) (PCl 2 PA) is an effective self-immolative CD r polymer for prototyping multi-stimuli-responsive three-dimensional polymeric materials with response properties that are inspired by the behaviour of certain biological materials in plants. In this article we detail the design and synthesis of PCl 2 PA, describe its ability to respond to specific stimuli, and compare and contrast PCl 2 PA with poly(phthalaldehyde) (PPA), which is the self-immolative CD r predecessor of this new poly(acetal). This article illustrates the favourable attributes of PCl 2 PA, including its dose-dependent solution-phase response to Pd(0). Taken together, these studies reveal the unique and useful attributes of PCl 2 PA for providing selective amplified responses to specific stimuli, both in solution and the solid state.

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Section: Effect Of Electron Withdrawing Groups and End-caps On The Thsupporting

confidence: 80%

End-capped poly(4,5-dichlorophthalaldehyde): a stable self-immolative poly(aldehyde) for translating specific inputs into amplified outputs, both in solution and the solid state

DiLauro

Phillips

2015

Polym. Chem.

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“…Figure a shows the long‐term cycling behavior of electrodes at a charge current density of 2100 mA g −1 (0.5 C; 1 C = 4200 mAh g −1 ) and a discharge current density of 840 mA g −1 (0.2 C) while controlling the voltage cutoff between 0.01 and 1.0 V. The initial discharge capacity of PAA–UPy anode reaches up to 4194 mAh g −1 , higher than that of anodes using PAA (3895 mAh g −1 ), CMC (3445 mAh g −1 ), and PVDF (3545 mAh g −1 ) as binders, suggesting the formation of a more stable SEI for the PAA–UPy anode. After 110 charge/discharge cycles, the PAA–UPy anode presents a reversible capacity of 2638 mAh g −1 , which is much higher than that of anodes using PAA (1734 mAh g −1 ), CMC (1099 mAh g −1 ), and PVDF (45 mAh g −1 ) as binders, and also higher than that in most reported works . Moreover, the cycling curve of PAA–UPy anode exhibits a more stable tendency when comparing with the other three, which is probably attributed to the excellent self‐healing ability of PAA–UPy that could instantly repair the damage or destruction caused by the volume variation of Si during repeated lithiation/delithiation.…”

Section: Resultsmentioning

confidence: 85%

A Quadruple‐Hydrogen‐Bonded Supramolecular Binder for High‐Performance Silicon Anodes in Lithium‐Ion Batteries

Zhang

Yang

Chen

et al. 2018

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193

145

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With extremely high specific capacity, silicon has attracted enormous interest as a promising anode material for next-generation lithium-ion batteries. However, silicon suffers from a large volume variation during charge/discharge cycles, which leads to the pulverization of the silicon and subsequent separation from the conductive additives, eventually resulting in rapid capacity fading and poor cycle life. Here, it is shown that the utilization of a self-healable supramolecular polymer, which is facilely synthesized by copolymerization of tert-butyl acrylate and an ureido-pyrimidinone monomer followed by hydrolysis, can greatly reduce the side effects caused by the volume variation of silicon particles. The obtained polymer is demonstrated to have an excellent self-healing ability due to its quadruple-hydrogen-bonding dynamic interaction. An electrode using this self-healing supramolecular polymer as binder exhibits an initial discharge capacity as high as 4194 mAh g and a Coulombic efficiency of 86.4%, and maintains a high capacity of 2638 mAh g after 110 cycles, revealing significant improvement of the electrochemical performance in comparison with that of Si anodes using conventional binders. The supramolecular binder can be further applicable for silicon/carbon anodes and therefore this supramolecular strategy may increase the choice of amendable binders to improve the cycle life and energy density of high-capacity Li-ion batteries.

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“…96 As the UPy motif and PPA backbone both contain hydrogen-bonding elements, the generated dynamers (61) are not only responsive to concentrations but also depolymerizable to monomer under appropriate conditions.…”

Section: Supramolecular Dynamersmentioning

confidence: 99%

Constitutional Dynamic Materials—Toward Natural Selection of Function

2015

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Depolymerizable, adaptive supramolecular polymer nanoparticles and networks

Abstract: Depolymerizable polymers are appended with supramolecular cross-linking motifs to enable preparation of tunable single-chain polymeric nanoparticles and degradable polymer networks.

Cited by 59 publications

References 54 publications

End-capped poly(4,5-dichlorophthalaldehyde): a stable self-immolative poly(aldehyde) for translating specific inputs into amplified outputs, both in solution and the solid state

End-capped poly(4,5-dichlorophthalaldehyde): a stable self-immolative poly(aldehyde) for translating specific inputs into amplified outputs, both in solution and the solid state

A Quadruple‐Hydrogen‐Bonded Supramolecular Binder for High‐Performance Silicon Anodes in Lithium‐Ion Batteries

Constitutional Dynamic Materials—Toward Natural Selection of Function

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