Solid-State Polymer Electrolytes Based on AB(3)-Type Miktoarm Star Copolymers
SCIE
SCOPUS
- Title
- Solid-State Polymer Electrolytes Based on AB(3)-Type Miktoarm Star Copolymers
- Authors
- Lee, Daeyeon; Jung, Ha Young; Park, Moon Jeong
- Date Issued
- 2018-08
- Publisher
- AMER CHEMICAL SOC
- Abstract
- Miktoarm star copolymers composed of three poly(ethylene oxide) (PEO) arms connected to one polystyrene (PS) chain, i.e., PS-(PEO)(3), demonstrated synergistic improvements in the ionic conductivity and mechanical strength by factors of 2-30 compared to those shown by PS-PEO diblock copolymers. Entropic constraints for the chain stretching of (PEO)(3) gave rise to notably reduced domain sizes of PS-(PEO)(3) electrolytes, compared with the values of PS-PEO analogues. Further, the melting transition of PS-(PEO)(3) with PEO molecular weight of M-n = 2 kg mol(-1) was vanished with lithium salt doping at [Li]/[EO] = 0.06 under such confinements, resulting in an order of magnitude increase in the room temperature conductivity. The fact that lithium ion transport in PEO-based copolymers can be tunable by the way PEO chains are connected to hard polymers can lead to innovative designs for solid-state polymer electrolytes.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/95703
- DOI
- 10.1021/acsmacrolett.8b00474
- ISSN
- 2161-1653
- Article Type
- Article
- Citation
- ACS MACRO LETTERS, vol. 7, no. 8, page. 1046 - 1050, 2018-08
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