Postdoctoral position

Charles S. Johnson, Jr. (charles_johnson@unc.edu)
Wed, 19 Nov 1997 09:33:39 -0500

An additional postdoctoral position will become available in my
laboratory in late March 1998. We continue to be interested in applications
of magnetic field gradients and RF gradients for the study of diffusion and
flow (1,2).

Projects now underway involve the development of methods, based on
toroid cavity detectors (3), for the analysis of mixtures. The two major
projects are concerned with:

1. Electrophoretic NMR in toroid cavities.
2. Diffusion studies of block copolymers in supercritical CO2 inside high
pressure toroid cavity detectors. (in collaboration with J.M. DeSimone)

These physical/analytical experiments require a knowledge of liquid
phase NMR methods, e.g. relaxation, exchange, and 2D. Experience with
pulsed gradient methods is desirable. Also, knowledge of analytical
separation methods and polymer science would be helpful.

1) Johnson, C.S., Jr. In Encyclopedia of NMR; Grant, D.M., Harris, R.K.,
Eds.; Wiley: New York, 1996; pp 1626-1644.
2) Johnson, C.S., Jr. In Encyclopedia of NMR; Grant, D.M., Harris, R.K.,
Eds.; Wiley: New York, 1996; pp 1886-1895.
3) Rathke, J.W.; Klingler, R.J.; Gerald, R.E.; Kramarz, K.W.; Woelk, K.
Prog Nucl Magn Reson Spectros 1997, 30, 209-253.

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Charles S. Johnson, Jr.                                Voice: (919)966-5229
M. A. Smith Professor of Chemistry              FAX:   (919)962-2388
University of North Carolina
Chapel Hill, NC 27599-3290, USA