Journal
JOURNAL OF MACROMOLECULAR SCIENCE PART B-PHYSICS
Volume 49, Issue 1, Pages 207-217Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/00222340903346494
Keywords
adsorption coefficients; polyelectrolyte effect; polysulfone with quaternary groups; viscosity
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Modification of intrinsic viscosity, temperature coefficient, and preferential adsorption coefficient of polysulfones with different alkyl side groups in N,N-dimethylformamide/methanol and N,N-dimethylformamide/water was investigated at different compositions and temperatures. The specific interactions, such as hydrogen bonding and polyelectrolyte effect induced by an enhanced dissociation of the ionizable groups, determine both the modification of the solvation power of the polymer coil and the difference in the composition of the mixed solvent inside and outside the coil.
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