Anti-Hofmeister series properties found for a polymer having a φ electron system and acidic protons

Masato Mori; Jianquan Wang; Mitsuru Satoh

doi:10.1007/s00396-008-1965-0

Anti-Hofmeister series properties found for a polymer having a φ electron system and acidic protons

Masato Mori, Jianquan Wang, Mitsuru Satoh^*

^*Corresponding author for this work

School of Material Science and Engineering

Institute of Science Tokyo

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

Anti-Hofmeister series properties have been found for a polymer (PVA-T) having a φ electron system and acidic protons, which were prepared by introducing trimellitic anhydride to poly(vinyl alcohol) (PVA). Aqueous dispersion of PVA-T became clear in the presence of 1 M Na₂SO₄, a typical kosmotrope, due to dissolution of the solid polymer sample, while the turbidity in the presence of 1 M KSCN, a typical chaotrope, hardly changed. Being consistent to the salt effects, PVA-T hydrogel, which was prepared by chemical cross-linking, showed marked swelling in sulfate solutions, whereas the swelling degree was only marginal in thiocyanates.

Original language	English
Pages (from-to)	123-127
Number of pages	5
Journal	Colloid and Polymer Science
Volume	287
Issue number	1
DOIs	https://doi.org/10.1007/s00396-008-1965-0
Publication status	Published - 2009

Keywords

Acidic proton
Hofmeister series
Hydrogel
Salt resistivity
φ electron

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Mori, M., Wang, J., & Satoh, M. (2009). Anti-Hofmeister series properties found for a polymer having a φ electron system and acidic protons. Colloid and Polymer Science, 287(1), 123-127. https://doi.org/10.1007/s00396-008-1965-0

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AB - Anti-Hofmeister series properties have been found for a polymer (PVA-T) having a φ electron system and acidic protons, which were prepared by introducing trimellitic anhydride to poly(vinyl alcohol) (PVA). Aqueous dispersion of PVA-T became clear in the presence of 1 M Na2SO4, a typical kosmotrope, due to dissolution of the solid polymer sample, while the turbidity in the presence of 1 M KSCN, a typical chaotrope, hardly changed. Being consistent to the salt effects, PVA-T hydrogel, which was prepared by chemical cross-linking, showed marked swelling in sulfate solutions, whereas the swelling degree was only marginal in thiocyanates.

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KW - Salt resistivity

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Anti-Hofmeister series properties found for a polymer having a φ electron system and acidic protons

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Keywords

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