Masters Theses

Author

Rajesh Shah

Abstract

“A small drop of toluene (2-10 ml) was deposited on a glass slide and covered with a micellar solution of sodium dodecyl sulfate (SDS). Due to solubilization the drop eventually vanished, and the rate of change of the basal radius of the drop and its contact angle were measured as functions of time.

It is seen that the mass transfer resistance is mainly an "interfacial resistance" which remains a constant through time. Although the rates as such increase with increasing surfactant concentrations, they eventually reach a constant value. Model suggests the actual rate constant decreases inversely with the surfactant concentrations. It will also be shown that fluid mechanics plays an important role and the "rollback" mechanism takes an unconventional route here.

Other systems show more complex features. There appear to be two stages, interfacial resistance control passing into diffusion control. However, there is a cusp separating the two that is not easily explained”--Abstract, page iii.

Advisor(s)

Neogi, P. (Partho), 1951-

Committee Member(s)

Forciniti, Daniel
Ybarra, Robert M.
Le, Vy Khoi

Department(s)

Chemical and Biochemical Engineering

Degree Name

M.S. in Chemical Engineering

Publisher

University of Missouri--Rolla

Publication Date

Spring 2002

Pagination

vii, 35 pages

Note about bibliography

Includes bibliographical references (pages 33-34).

Rights

© 2002 Rajesh Shah, All rights reserved.

Document Type

Thesis - Restricted Access

File Type

text

Language

English

Subject Headings

Solubilization
Surface active agents -- Testing

Thesis Number

T 8047

Print OCLC #

50396566

Link to Catalog Record

Electronic access to the full-text of this document is restricted to Missouri S&T users. Otherwise, request this publication directly from Missouri S&T Library or contact your local library.

http://laurel.lso.missouri.edu/record=b4826154~S5

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