Specific Solvation of Benzyl Methacrylate in 1-Ethyl-3-methylimidazolium Bis(trifluoromethanesulfonyl)amide Ionic Liquid

被引：28

作者：

Matsugami, Masaru ^{[1
]}

Fujii, Kenta ^{[2
]}

Ueki, Takeshi ^{[3
]}

Kitazawa, Yuzo ^{[4
]}

Umebayashi, Yasuhiro ^{[5
]}

Watanabe, Masayoshi ^{[4
]}

Shibayama, Mitsuhiro ^{[2
]}

机构：

[1] Kumamoto Natl Coll Technol, Fac Liberal Studies, Koshi, Kumamoto 8611102, Japan

[2] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan

[3] Univ Tokyo, Grad Sch Engn, Dept Mat Engn, Bunkyo Ku, Tokyo 1138656, Japan

[4] Yokohama Natl Univ, Dept Chem & Biotechnol, Yokohama, Kanagawa 2408501, Japan

[5] Kyushu Univ, Fac Sci, Dept Chem, Higashi Ku, Fukuoka 8128581, Japan

来源：

ANALYTICAL SCIENCES | 2013年 / 29卷 / 03期

关键词：

SOLUTION TEMPERATURE BEHAVIOR; POLY(BENZYL METHACRYLATE); PHASE-TRANSITION; BEAMLINE; BL04B2;

D O I：

10.2116/analsci.29.311

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

It has been established that poly(benzyl methacrylate) in a room-temperature ionic liquid, 1-ethyl-3-methylimidazolium bis(trifluoromethanesulfonyl)amide ([C(2)mIm(+)] [TFSA(-)]), exhibits lower critical solution temperature (LCST)-type phase separation. In this work we investigated the solvation structure of benzyl methacrylate monomer in the ionic liquid by using high-energy X-ray diffraction with the aid of a molecular dynamics simulation. It was found that the C(2)mIm cation orderly distributes above and below a benzyl group within benzil methacrylate (BnMA), while the TFSA anion distributes around the equatorial position of the benzyl group where no cation distribution is found, with a weak interaction between TFSA and BnMA. The relationship between specific solvation and the LCST phase separation mechanism was considered at the molecular level.

引用

页码：311 / 314

页数：4

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