COLL 544 |
| Bakul C. Dave, Department of Chemistry and Biochemistry, Southern Illinois University, Carbondale, Mail Stop 4409, Southern Illinois University, Carbondale, Carbondale, IL 62901-4409 and Mukti S. Rao, Department of Chemistry and Biochemistry, Southern Illinois University, Carbondale, IL 62901. |
| This presentation will focus on the use of organosilica sol-gels as environmentally-responsive materials. The organosilica sol-gels exhibit bulk volume changes with respect to different stimuli such as pH, temperature, salt, and solvents. These volume changes result in altered porosity of the gel matrix which can be utilized as a means for externally-regulated separation, release, and delivery of dopant molecular entities. The results on use of organosilica sol-gels as smart materials whose selectivity can be tuned by external stimuli will be presented. The externally-controlled selectivity of these materials for specific molecules will be evaluated in terms of their potential utility as separation media and stimuli-controlled delivery matrices. |
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“Smart” Polymers on Surfaces and Colloids
2:00 PM-4:50 PM, Thursday, April 1, 2004 Marriott -- Grand Ballroom J, Oral
Division of Colloid and Surface Chemistry |