A star-shaped single lithium-ion conducting copolymer by grafting a POSS nanoparticle

Peng Fei Cao; Zaneta Wojnarowska; Tao Hong; Bobby Carroll; Bingrui Li; Hongbo Feng; Leo Parsons; Weiyu Wang; Bradley S. Lokitz; Shiwang Cheng; Vera Bocharova; Alexei P. Sokolov; Tomonori Saito

doi:10.1016/j.polymer.2017.07.052

A star-shaped single lithium-ion conducting copolymer by grafting a POSS nanoparticle

Peng Fei Cao, Zaneta Wojnarowska, Tao Hong, Bobby Carroll, Bingrui Li, Hongbo Feng, Leo Parsons, Weiyu Wang, Bradley S. Lokitz, Shiwang Cheng, Vera Bocharova, Alexei P. Sokolov, Tomonori Saito

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

46 Scopus citations

Abstract

Single-ion conducting polymer electrolytes (SCPE) are attractive candidates for high-performance energy storage devices. A star-shaped single lithium-ion conducting polymer electrolyte was synthesized by combining the “grafting to” and “grafting from” strategy utilizing a polyhedral oligomeric silsesquioxane (POSS) nanoparticle as the core. Carboxylic acid terminated polyethylene oxide (PEO) and Reversible Addition Fragmentation Chain Transfer Agent (RAFT-CTA) were attached to the POSS nanoparticle to form a POSS-cored macro RAFT CTA (PMR-CTA). The PMR-CTA was used to mediate the polymerization of potassium (styrene-4-sulfonyltrifluoromethyl-sulfonyl)imide (STF-K⁺) and subsequent counter ion exchange resulted in a star-shaped single lithium-ion conducting copolymer (SSCP-Li⁺). The grafting ratio of poly(STF-Li⁺) and PEO per POSS nanoparticle can be tuned by modifying the feed ratio of the two polymer components. The synthesized star-shaped SCPE-Li⁺ are characterized by ¹H NMR, FT-IR, UV-Vis, DLS, GPC and DSC, and their ionic conductivity is studied by broadband dielectric spectroscopy. The obtained results are compared to a conventional linear homopolymer poly(STF-Li⁺) and block copolymer PEO-b-poly(STF-Li⁺), and reveal a significant “decoupling” of ion conductivity from segmental dynamics for all of the studied SCPE-Li⁺. Blending extra PEOs with SCPE-Li⁺ was also performed to improve the ionic conductivity.

Original language	English
Pages (from-to)	117-127
Number of pages	11
Journal	Polymer
Volume	124
DOIs	https://doi.org/10.1016/j.polymer.2017.07.052
State	Published - Aug 25 2017

Keywords

POSS
Polymer electrolyte
Single-ion conducting
Star-shaped
dc conductivity

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10.1016/j.polymer.2017.07.052

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@article{f39c080ec4344ec5b82155b83b51a68c,

title = "A star-shaped single lithium-ion conducting copolymer by grafting a POSS nanoparticle",

abstract = "Single-ion conducting polymer electrolytes (SCPE) are attractive candidates for high-performance energy storage devices. A star-shaped single lithium-ion conducting polymer electrolyte was synthesized by combining the “grafting to” and “grafting from” strategy utilizing a polyhedral oligomeric silsesquioxane (POSS) nanoparticle as the core. Carboxylic acid terminated polyethylene oxide (PEO) and Reversible Addition Fragmentation Chain Transfer Agent (RAFT-CTA) were attached to the POSS nanoparticle to form a POSS-cored macro RAFT CTA (PMR-CTA). The PMR-CTA was used to mediate the polymerization of potassium (styrene-4-sulfonyltrifluoromethyl-sulfonyl)imide (STF-K+) and subsequent counter ion exchange resulted in a star-shaped single lithium-ion conducting copolymer (SSCP-Li+). The grafting ratio of poly(STF-Li+) and PEO per POSS nanoparticle can be tuned by modifying the feed ratio of the two polymer components. The synthesized star-shaped SCPE-Li+ are characterized by 1H NMR, FT-IR, UV-Vis, DLS, GPC and DSC, and their ionic conductivity is studied by broadband dielectric spectroscopy. The obtained results are compared to a conventional linear homopolymer poly(STF-Li+) and block copolymer PEO-b-poly(STF-Li+), and reveal a significant “decoupling” of ion conductivity from segmental dynamics for all of the studied SCPE-Li+. Blending extra PEOs with SCPE-Li+ was also performed to improve the ionic conductivity.",

keywords = "POSS, Polymer electrolyte, Single-ion conducting, Star-shaped, dc conductivity",

author = "Cao, {Peng Fei} and Zaneta Wojnarowska and Tao Hong and Bobby Carroll and Bingrui Li and Hongbo Feng and Leo Parsons and Weiyu Wang and Lokitz, {Bradley S.} and Shiwang Cheng and Vera Bocharova and Sokolov, {Alexei P.} and Tomonori Saito",

note = "Publisher Copyright: {\textcopyright} 2017",

year = "2017",

month = aug,

day = "25",

doi = "10.1016/j.polymer.2017.07.052",

language = "English",

volume = "124",

pages = "117--127",

journal = "Polymer",

issn = "0032-3861",

publisher = "Elsevier",

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TY - JOUR

T1 - A star-shaped single lithium-ion conducting copolymer by grafting a POSS nanoparticle

AU - Cao, Peng Fei

AU - Wojnarowska, Zaneta

AU - Hong, Tao

AU - Carroll, Bobby

AU - Li, Bingrui

AU - Feng, Hongbo

AU - Parsons, Leo

AU - Wang, Weiyu

AU - Lokitz, Bradley S.

AU - Cheng, Shiwang

AU - Bocharova, Vera

AU - Sokolov, Alexei P.

AU - Saito, Tomonori

PY - 2017/8/25

Y1 - 2017/8/25

N2 - Single-ion conducting polymer electrolytes (SCPE) are attractive candidates for high-performance energy storage devices. A star-shaped single lithium-ion conducting polymer electrolyte was synthesized by combining the “grafting to” and “grafting from” strategy utilizing a polyhedral oligomeric silsesquioxane (POSS) nanoparticle as the core. Carboxylic acid terminated polyethylene oxide (PEO) and Reversible Addition Fragmentation Chain Transfer Agent (RAFT-CTA) were attached to the POSS nanoparticle to form a POSS-cored macro RAFT CTA (PMR-CTA). The PMR-CTA was used to mediate the polymerization of potassium (styrene-4-sulfonyltrifluoromethyl-sulfonyl)imide (STF-K+) and subsequent counter ion exchange resulted in a star-shaped single lithium-ion conducting copolymer (SSCP-Li+). The grafting ratio of poly(STF-Li+) and PEO per POSS nanoparticle can be tuned by modifying the feed ratio of the two polymer components. The synthesized star-shaped SCPE-Li+ are characterized by 1H NMR, FT-IR, UV-Vis, DLS, GPC and DSC, and their ionic conductivity is studied by broadband dielectric spectroscopy. The obtained results are compared to a conventional linear homopolymer poly(STF-Li+) and block copolymer PEO-b-poly(STF-Li+), and reveal a significant “decoupling” of ion conductivity from segmental dynamics for all of the studied SCPE-Li+. Blending extra PEOs with SCPE-Li+ was also performed to improve the ionic conductivity.

AB - Single-ion conducting polymer electrolytes (SCPE) are attractive candidates for high-performance energy storage devices. A star-shaped single lithium-ion conducting polymer electrolyte was synthesized by combining the “grafting to” and “grafting from” strategy utilizing a polyhedral oligomeric silsesquioxane (POSS) nanoparticle as the core. Carboxylic acid terminated polyethylene oxide (PEO) and Reversible Addition Fragmentation Chain Transfer Agent (RAFT-CTA) were attached to the POSS nanoparticle to form a POSS-cored macro RAFT CTA (PMR-CTA). The PMR-CTA was used to mediate the polymerization of potassium (styrene-4-sulfonyltrifluoromethyl-sulfonyl)imide (STF-K+) and subsequent counter ion exchange resulted in a star-shaped single lithium-ion conducting copolymer (SSCP-Li+). The grafting ratio of poly(STF-Li+) and PEO per POSS nanoparticle can be tuned by modifying the feed ratio of the two polymer components. The synthesized star-shaped SCPE-Li+ are characterized by 1H NMR, FT-IR, UV-Vis, DLS, GPC and DSC, and their ionic conductivity is studied by broadband dielectric spectroscopy. The obtained results are compared to a conventional linear homopolymer poly(STF-Li+) and block copolymer PEO-b-poly(STF-Li+), and reveal a significant “decoupling” of ion conductivity from segmental dynamics for all of the studied SCPE-Li+. Blending extra PEOs with SCPE-Li+ was also performed to improve the ionic conductivity.

KW - POSS

KW - Polymer electrolyte

KW - Single-ion conducting

KW - Star-shaped

KW - dc conductivity

UR - http://www.scopus.com/inward/record.url?scp=85025820940&partnerID=8YFLogxK

U2 - 10.1016/j.polymer.2017.07.052

DO - 10.1016/j.polymer.2017.07.052

M3 - Article

AN - SCOPUS:85025820940

SN - 0032-3861

VL - 124

SP - 117

EP - 127

JO - Polymer

JF - Polymer

ER -

A star-shaped single lithium-ion conducting copolymer by grafting a POSS nanoparticle

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Keywords

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