NDLI: High-Conductivity Electrolyte Gate Dielectrics Based on Poly(styrene-co-methyl methacrylate)/Ionic Liquid

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High-Conductivity Electrolyte Gate Dielectrics Based on Poly(styrene-co-methyl methacrylate)/Ionic Liquid

Content Provider	Semantic Scholar
Author	Lee, Donghui Jung, Yunji Ha, Myeongjin Ahn, Hyungju Lee, Keun Hyung Seo, Myungeun
Copyright Year	2019
Abstract	We report self-assembly of a statistical copolymer poly(styrene-co-methyl methacrylate) (P(S-co-MMA)) containing ionic liquid (IL)-philic methyl methacrylate (MMA) and IL-phobic styrene (S) repeating units in IL for fabrication of electrolyte-gated organic transistors. P(S-co-MMA)s with high MMA contents were synthesized by copolymerization of styrene and MMA via a reversible addition–fragmentation chain transfer (RAFT) process, and their behavior in 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([EMI][TFSI]) was investigated. While dynamic light scattering analysis showed formation of a micellar solution at low concentration, the elastic modulus of the viscoelastic solution increased significantly more than the loss modulus at high concentration. Small angle X-ray scattering analysis suggested ill-defined phase separation between PS-rich segments and PS-lean segments swollen in [EMI][TFSI]. The resulting P(S-co-MMA)/[EMI][TFSI] mixture exhibited increased ionic conductivity compared to the PS-b-PMMA-b-PS block polymer gel, as well as superior device performance in transistor gating experiments.
Starting Page	6950
Ending Page	6955
Page Count	6
File Format	PDF HTM / HTML
DOI	10.1039/C9TC01610D
Alternate Webpage(s)	http://www.rsc.org/suppdata/c9/tc/c9tc01610d/c9tc01610d1.pdf
Alternate Webpage(s)	https://doi.org/10.1039/C9TC01610D
Volume Number	7
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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