Nanoconfined water in ionic liquid and lyotropic ionic liquid crystals by small- and wide-angle X-ray and neutron scattering; 1-Decyl-3-methylimidazolium nitrate

Abe, Hiroshi*; Nemoto, Fumiya*; Hiroi, Kosuke ; Takata, Shinichi

Nanoconfined water (water pocket) and ionic liquid crystals (ILCs) were formed in a hydrophilic ionic liquid (IL)-D $_{2}$ O system. Herein, 1-decyl-3-methylimidazolium nitrate ([C $_{10}$ mim][NO $_{3}$ ]) was used as the IL. By the complementary use of small- and wide-angle X-ray and neutron scattering, a complicated phase diagram of [C $_{10}$ mim][NO $_{3}$ ]-D $_{2}$ O was determined. The lyotropic ILCs of [C $_{10}$ mim][NO $_{3}$ ] containing 70-90 mol% D $_{2}$ O appeared at room temperature. At high temperature, the lyotropic ILCs transformed into the water pocket in the nanoheterogeneous liquid.

Language	:	English
Journal	:	Journal of Molecular Liquids
Volume	:	386
Number	:
Pages	:	p.122551_1 - 122551_7
Publication Year/Month	:	2023/09
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Paper URL	:	https://doi.org/10.1016/j.molliq.2023.122551
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Keywords	:	no keyword
Research Facility	:	J-PARC物質・生命科学実験施設
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Registration No. : AA20240965
JAEA Abstracts No. : 53001110
Paper Submission No. : 29985

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