Microion disposition in colloidal systems

COLL 367

Kenneth S. Schmitz, Department of Chemistry, Department of Chemistry, University of Missouri - Kansas City, 5105 Rockhill Road, Kansas City, MO 64110
Brownian dynamics simulations of the microions were performed for two similar macroion clusters (a 7-particle diamond shape array or an 8-particle simple cubic array) at the volume fraction of 0.01. It was found that as the two clusters approached each other the diamond cluster system became less stable whereas the simple cubic cluster system became more stable. This difference in behavior is attributed to the relative abilities of these structures to "share" counterions. Implications regarding the dynamics of such systems are discussed.
 

Colloidal and Molecular Electro-Optics

Division of Colloid and Surface Chemistry
The 225th ACS National Meeting, New Orleans, LA, March 23-27, 2003