Sulfonimide-Containing Triblock Copolymers for Improved Conductivity and Mechanical Performance

Chainika Jangu; Alice M. Savage; Zhiyang Zhang; Alison R. Schultz; Louis A. Madsen; Frederick L. Beyer; Timothy E. Long

doi:10.1021/acs.macromol.5b01009

Sulfonimide-Containing Triblock Copolymers for Improved Conductivity and Mechanical Performance

Chainika Jangu, Alice M. Savage, Zhiyang Zhang, Alison R. Schultz, Louis A. Madsen, Frederick L. Beyer, Timothy E. Long

Research output: Contribution to journal › Article › peer-review

81 Scopus citations

Abstract

Ion-containing block copolymers continue to attract significant interest as conducting membranes in energy storage devices. Reversible addition-fragmentation chain transfer (RAFT) polymerization enables the synthesis of well-defined ionomeric A-BC-A triblock copolymers, featuring a microphase-separated morphology and a combination of excellent mechanical properties and high ion transport. The soft central "BC" block is composed of poly(4-styrenesulfonyl(trifluoromethylsulfonyl)imide) (poly(Sty-Tf₂N)) with -SO₂-N^--SO₂-CF₃ anionic groups associated with a mobile lithium cation and low-T_g di(ethylene glycol)methyl ether methacrylate (DEGMEMA) units. External polystyrene A blocks provide mechanical strength with nanoscale morphology even at high ion content. Electrochemical impedance spectroscopy (EIS) and pulse-field-gradient (PFG) NMR spectroscopy have clarified the ion transport properties of these ionomeric A-BC-A triblock copolymers. Results confirmed that well-defined ionomeric A-BC-A triblock copolymers combine improved ion-transport properties with mechanical stability with significant potential for application in energy storage devices.

Original language	English (US)
Pages (from-to)	4520-4528
Number of pages	9
Journal	Macromolecules
Volume	48
Issue number	13
DOIs	https://doi.org/10.1021/acs.macromol.5b01009
State	Published - Jul 14 2015
Externally published	Yes

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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10.1021/acs.macromol.5b01009

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abstract = "Ion-containing block copolymers continue to attract significant interest as conducting membranes in energy storage devices. Reversible addition-fragmentation chain transfer (RAFT) polymerization enables the synthesis of well-defined ionomeric A-BC-A triblock copolymers, featuring a microphase-separated morphology and a combination of excellent mechanical properties and high ion transport. The soft central {"}BC{"} block is composed of poly(4-styrenesulfonyl(trifluoromethylsulfonyl)imide) (poly(Sty-Tf2N)) with -SO2-N--SO2-CF3 anionic groups associated with a mobile lithium cation and low-Tg di(ethylene glycol)methyl ether methacrylate (DEGMEMA) units. External polystyrene A blocks provide mechanical strength with nanoscale morphology even at high ion content. Electrochemical impedance spectroscopy (EIS) and pulse-field-gradient (PFG) NMR spectroscopy have clarified the ion transport properties of these ionomeric A-BC-A triblock copolymers. Results confirmed that well-defined ionomeric A-BC-A triblock copolymers combine improved ion-transport properties with mechanical stability with significant potential for application in energy storage devices.",

author = "Chainika Jangu and Savage, {Alice M.} and Zhiyang Zhang and Schultz, {Alison R.} and Madsen, {Louis A.} and Beyer, {Frederick L.} and Long, {Timothy E.}",

note = "Publisher Copyright: {\textcopyright} 2015 American Chemical Society.",

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T1 - Sulfonimide-Containing Triblock Copolymers for Improved Conductivity and Mechanical Performance

AU - Jangu, Chainika

AU - Savage, Alice M.

AU - Zhang, Zhiyang

AU - Schultz, Alison R.

AU - Madsen, Louis A.

AU - Beyer, Frederick L.

AU - Long, Timothy E.

PY - 2015/7/14

Y1 - 2015/7/14

N2 - Ion-containing block copolymers continue to attract significant interest as conducting membranes in energy storage devices. Reversible addition-fragmentation chain transfer (RAFT) polymerization enables the synthesis of well-defined ionomeric A-BC-A triblock copolymers, featuring a microphase-separated morphology and a combination of excellent mechanical properties and high ion transport. The soft central "BC" block is composed of poly(4-styrenesulfonyl(trifluoromethylsulfonyl)imide) (poly(Sty-Tf2N)) with -SO2-N--SO2-CF3 anionic groups associated with a mobile lithium cation and low-Tg di(ethylene glycol)methyl ether methacrylate (DEGMEMA) units. External polystyrene A blocks provide mechanical strength with nanoscale morphology even at high ion content. Electrochemical impedance spectroscopy (EIS) and pulse-field-gradient (PFG) NMR spectroscopy have clarified the ion transport properties of these ionomeric A-BC-A triblock copolymers. Results confirmed that well-defined ionomeric A-BC-A triblock copolymers combine improved ion-transport properties with mechanical stability with significant potential for application in energy storage devices.

AB - Ion-containing block copolymers continue to attract significant interest as conducting membranes in energy storage devices. Reversible addition-fragmentation chain transfer (RAFT) polymerization enables the synthesis of well-defined ionomeric A-BC-A triblock copolymers, featuring a microphase-separated morphology and a combination of excellent mechanical properties and high ion transport. The soft central "BC" block is composed of poly(4-styrenesulfonyl(trifluoromethylsulfonyl)imide) (poly(Sty-Tf2N)) with -SO2-N--SO2-CF3 anionic groups associated with a mobile lithium cation and low-Tg di(ethylene glycol)methyl ether methacrylate (DEGMEMA) units. External polystyrene A blocks provide mechanical strength with nanoscale morphology even at high ion content. Electrochemical impedance spectroscopy (EIS) and pulse-field-gradient (PFG) NMR spectroscopy have clarified the ion transport properties of these ionomeric A-BC-A triblock copolymers. Results confirmed that well-defined ionomeric A-BC-A triblock copolymers combine improved ion-transport properties with mechanical stability with significant potential for application in energy storage devices.

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Sulfonimide-Containing Triblock Copolymers for Improved Conductivity and Mechanical Performance

Abstract

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