Abstract

A hypothesis for deterrnining the maximum viscosity of sodium carboxymethylcellulose (or CMC) in salt solutions with respect to the concentration of CMC, the ionic strength and the cation size of the salts is proposed. The viscosity behavior of sodium carboxymethylcellulose in high ionic strength solutions was studied by varying the concentration of the CMC and the type of counterion. The object of this series of two experiments was to determine the effect of valency, cation size and ionic strength on the viscosity of CMC in high ionic strength solutions. The viscosity data in this study suggest some trends with regard to the effect of ionic strength and concentration of CMC on the viscosity behavior of CMC in solution which have been previously unreported. Additionally, some of the samples exhibited characterisitics which suggest the possibility of gelation or crosslinking of the polymer.

Library of Congress Subject Headings

Cellulose--Chemistry; Solution (Chemistry)--Viscosity; Ionic solutions; Polymers

Publication Date

11-1-1996

Document Type

Thesis

Department, Program, or Center

School of Chemistry and Materials Science (COS)

Advisor

Tubbs, Laura

Comments

Note: imported from RIT’s Digital Media Library running on DSpace to RIT Scholar Works. Physical copy available through RIT's The Wallace Library at: QD323 .L55 1996

Campus

RIT – Main Campus

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