Investigating the physical properties of 4-dimethylaminopyridine containing ionic liquids

CHED 1124

Jasmine Hatcher, msjhatcher@gmail.com1, Marie Thomas, malie333@hotmail.com2, Robert Engel, robert_engel@qc.edu2, Sharon I. Lall-Ramnarine, slallramnarine@qcc.cuny.edu3, and James F. Wishart, wishart@bnl.gov4. (1) Department of Chemistry and Biochemistry, Queens College, CUNY, 65-30 Kissena Blvd., Flushing, NY 11367, (2) Department of Chemistry and Biochemistry, Queens College and the Graduate Center of CUNY, 65-30 Kissena Boulevard, Flushing, NY 11367, (3) Department of Chemistry, Queensborough Community College, CUNY, 222-05 56th Avenue, Bayside, NY 11364, (4) Chemistry Department, Brookhaven National Laboratory, Upton, NY 11973
Ionic liquids have generated much interest due to their potential green chemistry applications. They are considered to be environmentally friendlier solvent alternatives to traditional volatile (and hazardous) organic solvents because of their lack of vapor pressure under standard conditions. We report here on the physical characterization of 4-Dimethylaminopyridine (DMAP) based ionic liquids. Unlike more common imidazolium type ionic liquids there is a lack of the physical data on DMAP. The DMAP salts were synthesized using various alkylating agents such as 3-chloropropanol and 2-bromoethyl ethyl ether. The halide salts were converted to ionic liquids bearing bis(trifyl)imide anions. Physical properties investigated include: viscosity, conductivity and thermal profile. Preliminary results indicate that the ionic liquids containing alkyl groups with a single hydroxyl unit have the lowest viscosity (109 cP) and highest conductivity (0.80 mS cm-1) at room temperature. Supported in part at BNL by DOE Basic Energy Sciences under contract # DE-AC02-98CH10886.
 

Undergraduate Research Poster Session: Environmental Chemistry
2:00 PM-4:00 PM, Monday, March 26, 2007 Hyatt Regency Chicago -- Riverside Center, Poster

Division of Chemical Education

The 233rd ACS National Meeting, Chicago, IL, March 25-29, 2007