A Program of Study on the Aggregation of Molecules and Their Effect on Sound Propagation.
DREXEL UNIV PHILADELPHIA PA
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This final report outlines the accomplishments of the study of the aggregation of molecules and their effect on sound propagation. A theoretical approach has been developed to analyze non-linear sound propagation applicable to aggregating medium. Experimental techniques such as dielectric relaxation over a frequency range of 100 Hz to 3 gega Hz, and ultrasonic vibration potential over a range of 0.2 to 2 MHz were developed. Measurements have been made on a micellar forming anionic paraffin chain salt sodium dodecyl sulfate, SDS and a cationic paraffin chain salt dodecyl triammonium bromide, DTAB. A dielectric relaxation was found for SDS and DTAB attributed to a shell of interfacial water around the hydrocarbon core of the micelle.
- Organic Chemistry