Masters Theses

Abstract

"A microinterferometric method was used to study the effect of solute concentration on the diffusion coefficient in polymer solutions and also to determine the effect of polymer concentration on the diffusion coefficient. The polyacrylonitrile-dimethylformamide system was used as a means of determining the accuracy of the experimental apparatus and procedure. The non-ionic, water soluble polymer, hydroxyethyl cellulose (commercially known as Natrosol), was used to study this effect with urea and D-glucose as the solutes.

The results obtained for the polyacrylonitrile-dimethylformamide system were in close agreement with the results obtained by Secor, which meant that the experimental technique is accurate enough to give reproducible data. The differential diffusion coefficient increased with the increase in solute concentration in all cases. The effect of solute concentration on the differential diffusion coefficient was found to be similar for various polymer concentrations and different solutes. The integral diffusion coefficient remained almost constant for the concentration range of the solutes used in this work. No effect of polymer concentration on the integral diffusion coefficient could be deduced from the experimental data"--Abstract, page ii.

Advisor(s)

Wellek, Robert M.

Committee Member(s)

Brown, Linda M.
Conrad, Frank H., 1902-1983
Grice, Harvey H., 1912-1993

Department(s)

Chemical and Biochemical Engineering

Degree Name

M.S. in Chemical Engineering

Publisher

University of Missouri at Rolla

Publication Date

1966

Pagination

xi, 120 pages

Note about bibliography

Includes bibliographical references (pages 117-118).

Rights

© 1966 Girish T. Dalal, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Subject Headings

Polymer solutions -- Diffusion rateDiffusion -- Mathematical modelsGlucose

Thesis Number

T 1886

Print OCLC #

5975820

Electronic OCLC #

903381831

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