Doctoral Dissertations

Spreading kinetics of constrained thin films

Keywords and Phrases

Disjoining pressure


"The kinetics of spreading of thin liquid films on a solid substrate in the presence of constraints has been studied here. The internal constraint appears in the form of dissolved polymers which cause the solution to be non wetting or only partially wetting. The polymer is assumed to be non-adsorbing. The fluid flow is governed by the Laplace pressure and the disjoining pressure. A detailed formulation has been solved using a numerical scheme and results have been presented for two cases of thin films with and without dissolved polymers. Both these cases have further been analyzed in the presence and absence of evaporation effects. The external constraint is that of the film pinned to a slot. The results explain well experimental observations by other researchers who observed that drops of polymer solutions spread with rates similar to setting liquids and then suddenly stopped to equilibrate. It is seen that the contact line becomes pinned in the presence of evaporation effects"--Abstract, page iii.


Neogi, P. (Partho), 1951-

Committee Member(s)

Wang, Jee C.
Henthorn, David
Isaac, Kakkattukuzhy M.
Bekker, Miron


Chemical and Biochemical Engineering

Degree Name

Ph. D. in Chemical Engineering


National Science Foundation (U.S.)


University of Missouri--Rolla

Publication Date

Fall 2006


viii, 67 pages

Note about bibliography

Includes bibliographical references (pages 64-66).


© 2006 Saritha Sathyanarayanan, All rights reserved.

Document Type

Dissertation - Citation

File Type




Subject Headings

Chemical kinetics
Thin films

Thesis Number

T 9064

Print OCLC #


Link to Catalog Record

Full-text not available: Request this publication directly from Missouri S&T Library or contact your local library.

This document is currently not available here.

Share My Dissertation If you are the author of this work and would like to grant permission to make it openly accessible to all, please click the button above.