The effect of low-polarity solvents on the properties of sulfonated polystyrene sodium salt ionomer (SPS-Na), sulfonated polystyrene calcium salt ionomer (SPS-Ca), and poly(methyl methacrylate)(PMMA-Na) ionomers were studied through viscosity experiments. Ionomers were dissolved in different low polarity solvents and viscosity measurements conducted at dilute concentrations. Intramolecular bonds between ionomer chains dominate at dilute concentrations and resulted in a decrease in solution viscosity. The relative change in viscosity was determined by the strength of the ionomer counterions as well as solvent polarity. All three ionomers were first dissolved in a mixture of benzene and methanol with the concentration of methanol in the solvent varied between 1-10% to study the change in viscosity as a function of solvent polarity. Solution viscosity increased with increasing methanol content, with a more noticeable effect occurring in PMMA-Na and SPS-Na. In addition, the solubility of the ionomers were tested in solvent mixtures of tetrahydrofuran (THF) and eight different ionic liquids in the imidazolium family. Similar viscosity behavior was observed for some of the solvent mixtures containing ionic liquids, and in some cases the ionic liquid was observed to be more effective than benzene and methanol. Finally, it was observed that the chemical structure of the ionic liquids played a part in the viscosity behavior for ionomers.
Subject (authority = RUETD)
Topic
Chemical and Biochemical Engineering
Subject (authority = ETD-LCSH)
Topic
Ionomers
Subject (authority = ETD-LCSH)
Topic
Solvents
RelatedItem (type = host)
TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
Identifier (type = RULIB)
ETD
Identifier
ETD_7175
PhysicalDescription
Form (authority = gmd)
electronic resource
InternetMediaType
application/pdf
InternetMediaType
text/xml
Extent
1 online resource (vii, 44 p. : ill.)
Note (type = degree)
M.S.
Note (type = bibliography)
Includes bibliographical references
Note (type = statement of responsibility)
by Elliot Taylor
RelatedItem (type = host)
TitleInfo
Title
Graduate School - New Brunswick Electronic Theses and Dissertations
Identifier (type = local)
rucore19991600001
Location
PhysicalLocation (authority = marcorg); (displayLabel = Rutgers, The State University of New Jersey)
Rutgers University. Graduate School - New Brunswick
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Type
License
Name
Author Agreement License
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