Synthesis and CMC studies of 1-methyl-3-(pentafluorophenyl)imidazolium quaternary salts

被引:22
作者
Beyaz, A [1 ]
Oh, WS [1 ]
Reddy, VP [1 ]
机构
[1] Univ Missouri, Dept Chem, Rolla, MO 65409 USA
关键词
CMC; surfactants; SDS; UV-vis spectroscopy;
D O I
10.1016/j.colsurfb.2004.04.009
中图分类号
Q6 [生物物理学];
学科分类号
071011 ;
摘要
Critical Micelle Concentration (CMC) of sodium dodecyl sulfate (SIDS), an anionic surfactant, has been investigated in 30 mM aqueous solutions of 1-benzyl-3-methylimidazolium chloride (1) and 1-methyl-3-(pentafluorophenyl)imidazolium chloride (2). The CIVIC of SDS is significantly lower in the presence of 2 as compared to that of 1. The decreased CMC of SDS in the presence of 2 is in accordance with its increased hydrophobicity due to the fluorinated side chain. The thermogravimetric analysis of compounds 1 and 2 shows that they are thermally stable up to about 290degreesC. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:71 / 74
页数:4
相关论文
共 13 条
[1]   Surfactant solvation effects and micelle formation in ionic liquids [J].
Anderson, JL ;
Pino, V ;
Hagberg, EC ;
Sheares, VV ;
Armstrong, DW .
CHEMICAL COMMUNICATIONS, 2003, (19) :2444-2445
[2]   Ionic liquids as modulators of the critical micelle concentration of sodium dodecyl sulfate [J].
Beyaz, A ;
Oh, WS ;
Reddy, VP .
COLLOIDS AND SURFACES B-BIOINTERFACES, 2004, 35 (02) :119-124
[3]   Efficient synthesis of 1-alkyl(aralkyl)-3-methyl(ethyl)imidazolium halides: Precursors for room-temperature ionic liquids [J].
Dzyuba, SV ;
Bartsch, RA .
JOURNAL OF HETEROCYCLIC CHEMISTRY, 2001, 38 (01) :265-268
[4]   Surfactant aggregation within room-temperature ionic liquid 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide [J].
Fletcher, KA ;
Pandey, S .
LANGMUIR, 2004, 20 (01) :33-36
[5]   NMR study of the transformation of perfluorinated surfactant solutions [J].
Iijima, H ;
Koyama, S ;
Fujio, K ;
Uzu, Y .
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 1999, 72 (02) :171-177
[6]   Novel class of ionic metallomesogens without organic ligands: Thermotropic liquid-crystalline behavior of tetrachlorometalate salts and distinct polymorphic transition in smectic A phases [J].
Kanazawa, A ;
Ikeda, T ;
Nagase, Y .
CHEMISTRY OF MATERIALS, 2000, 12 (12) :3776-3782
[7]   New phosphate fluorosurfactants for carbon dioxide [J].
Keiper, JS ;
Simhan, R ;
DeSimone, JM ;
Wignall, GD ;
Melnichenko, YB ;
Frielinghaus, H .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (09) :1834-1835
[8]   Micellization of fluorinated amphiphiles [J].
Matsuoka, K ;
Moroi, Y .
CURRENT OPINION IN COLLOID & INTERFACE SCIENCE, 2003, 8 (03) :227-235
[9]   Blood substitutes and other potential biomedical applications of fluorinated colloids [J].
Riess, JG .
JOURNAL OF FLUORINE CHEMISTRY, 2002, 114 (02) :119-126
[10]   Fluorosurfactant self-assembly at solid/liquid interfaces [J].
Rojas, OJ ;
Macakova, L ;
Blomberg, E ;
Emmer, Å ;
Claesson, PM .
LANGMUIR, 2002, 18 (21) :8085-8095