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X-ray photoelectron spectroscopic measurements were made on complexes obtained from sulfonated polystyrene (SPS) and poly(styrene-co-4-vinylpyridine) (PSVP). The N1s spectrum of PSVP shows the existence of a single nitrogen environment. Two different nitrogen environments are discernible in the N1s spectra of the complexes, indicating that some of the pyridine units have been protonated. The S2p...
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