%0 Journal Article
%T Solid-State Polymer Electrolytes Based on AB3-Type Miktoarm Star Copolymers
%J -
%D 2018
%R https://doi.org/10.1021/acsmacrolett.8b00474
%X Miktoarm star copolymers composed of three poly(ethylene oxide) (PEO) arms connected to one polystyrene (PS) chain, i.e., PS每(PEO)3, demonstrated synergistic improvements in the ionic conductivity and mechanical strength by factors of 2每30 compared to those shown by PS每PEO diblock copolymers. Entropic constraints for the chain stretching of (PEO)3 gave rise to notably reduced domain sizes of PS每(PEO)3 electrolytes, compared with the values of PS每PEO analogues. Further, the melting transition of PS每(PEO)3 with PEO molecular weight of Mn = 2 kg mol每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
%U https://pubs.acs.org/doi/10.1021/acsmacrolett.8b00474