THE CONCENTRATION DEPENDENCE OF THE SELF-DIFFUSION COEFFICIENTS OF STRONTIUM ION IN AQUEOUS POLYSTYRENESULFONIC ACID SOLUTIONS

Journal Article · Wed Jun 01 04:00:00 EDT 1960 · J. Polymer Sci.

DOI:https://doi.org/10.1002/pol.1960.1204414418· OSTI ID:4173863

Hardy, Jr, E P; Steigman, J

The diffusion coefficients of strontium in 10/sup -4/M aqueous solutions of polystyrenesulfonic acid were maeasured at 26 deg C. The coefficients were low, about 0.15 x 10/sup -5/ cm/sup 2// sec, until strontium equivalent to one- fifth of the sulfonates was added. They then increased relatively rapidiy, to about 0.7 x 10/sup -5/ cm/sup 2//sec, as the concentration of strontium was increased to 10/sup -4/M. These results were interpreted to mean either that the binding of counterions to a polyelectrolyte is lindted to parts of a chain and is not related to the chain as s whole, or else that there is a recurring regularity of structure in the atactic polystyrene sulfonic acid which limits binding of counterions to a fraction of the total changed sites. (auth)

• Research Organization: Polytechnic Inst. of Brooklyn
• NSA Number: NSA-14-021376
• OSTI ID: 4173863
• Journal Information: J. Polymer Sci., Journal Name: J. Polymer Sci. Vol. Vol: 44
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CHEMISTRY
DIFFUSION
ELECTROLYTES
IONS
MEASURED VALUES
ORGANIC ACIDS
POLYSTYRENE
SOLUTIONS
STRONTIUM
STYRENE
SULFONIC ACIDS
WATER