Polyelectrolytes hydrophobic polyacids

ULRICH P. STRAUSS, Professor of Chemistry, Rutgers University, the State University of New Jersey, graduated from Columbia University (A.B. 1941), then attended Cornell University to obtain a Ph.D. (1944). He was a Sterling Postdoctoral Fellow at Yale University from 1946-48. He has been on the Rutgers University faculty since 1948. His main areas of research are polyelectrolytes, polysoaps, DNA, specific counterion binding and hydrophobic polyacids and polyampholytes. 

Humic acids, a class of naturally occurring organic polyelectrolytes found 1n soil and natural waters, have been the subject of considerable study with Sephadex SEC (34-36). Unfortunately, both electrostatic repulsive effects and hydrophobic adsorption influence the chromatography on Sephadex of these complex polyacids. Since the first effect is diminished and the second increased by added salt, solvents that eliminate non-steric effects have apparently not been identified (36). 

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