Binding of methylene blue to polyelectrolytes containing sulfonate groups

Ignacio Moreno-Villoslada; Cristian Torres; Felipe González; Toshimichi Shibue; Hiroyuki Nishide

doi:10.1002/macp.200900042

Binding of methylene blue to polyelectrolytes containing sulfonate groups

Ignacio Moreno-Villoslada^*, Cristian Torres, Felipe González, Toshimichi Shibue, Hiroyuki Nishide

^*Corresponding author for this work

Waseda Research Institute for Science and Engineering

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

62 Citations (Scopus)

Abstract

The interaction between methylene blue (MB) and poly(sodium 4-styrenesulfonate) (PSS), poly(sodium vinylsulfonate) (PVS), and the more hydrophobic poly[sodium 2-(N-acrylamido)-2-methyl-propanesulfonate] (PAMPS), is investigated. The main driving forces for the interaction with PSS are supposed to be short-range aromatic/aromatic interactions, which explain the smaller dissociation constant, the resistance to the cleaving effect of NaCl, and the prevention of MB self-aggregation around the macromolecules under a moderate excess of the polymer. On the contrary, as a consequence of long-range interactions, a higher local concentration of MB around PAMPS and, more significantly, around PVS results in MB self-aggregation that can be quenched in the presence of NaCl.

Original language	English
Pages (from-to)	1167-1175
Number of pages	9
Journal	Macromolecular Chemistry and Physics
Volume	210
Issue number	13-14
DOIs	https://doi.org/10.1002/macp.200900042
Publication status	Published - 2009 Jul 21

ASJC Scopus subject areas

Materials Chemistry
Polymers and Plastics
Organic Chemistry
Physical and Theoretical Chemistry
Condensed Matter Physics

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title = "Binding of methylene blue to polyelectrolytes containing sulfonate groups",

abstract = "The interaction between methylene blue (MB) and poly(sodium 4-styrenesulfonate) (PSS), poly(sodium vinylsulfonate) (PVS), and the more hydrophobic poly[sodium 2-(N-acrylamido)-2-methyl-propanesulfonate] (PAMPS), is investigated. The main driving forces for the interaction with PSS are supposed to be short-range aromatic/aromatic interactions, which explain the smaller dissociation constant, the resistance to the cleaving effect of NaCl, and the prevention of MB self-aggregation around the macromolecules under a moderate excess of the polymer. On the contrary, as a consequence of long-range interactions, a higher local concentration of MB around PAMPS and, more significantly, around PVS results in MB self-aggregation that can be quenched in the presence of NaCl.",

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T1 - Binding of methylene blue to polyelectrolytes containing sulfonate groups

AU - Moreno-Villoslada, Ignacio

AU - Torres, Cristian

AU - González, Felipe

AU - Shibue, Toshimichi

AU - Nishide, Hiroyuki

PY - 2009/7/21

Y1 - 2009/7/21

N2 - The interaction between methylene blue (MB) and poly(sodium 4-styrenesulfonate) (PSS), poly(sodium vinylsulfonate) (PVS), and the more hydrophobic poly[sodium 2-(N-acrylamido)-2-methyl-propanesulfonate] (PAMPS), is investigated. The main driving forces for the interaction with PSS are supposed to be short-range aromatic/aromatic interactions, which explain the smaller dissociation constant, the resistance to the cleaving effect of NaCl, and the prevention of MB self-aggregation around the macromolecules under a moderate excess of the polymer. On the contrary, as a consequence of long-range interactions, a higher local concentration of MB around PAMPS and, more significantly, around PVS results in MB self-aggregation that can be quenched in the presence of NaCl.

AB - The interaction between methylene blue (MB) and poly(sodium 4-styrenesulfonate) (PSS), poly(sodium vinylsulfonate) (PVS), and the more hydrophobic poly[sodium 2-(N-acrylamido)-2-methyl-propanesulfonate] (PAMPS), is investigated. The main driving forces for the interaction with PSS are supposed to be short-range aromatic/aromatic interactions, which explain the smaller dissociation constant, the resistance to the cleaving effect of NaCl, and the prevention of MB self-aggregation around the macromolecules under a moderate excess of the polymer. On the contrary, as a consequence of long-range interactions, a higher local concentration of MB around PAMPS and, more significantly, around PVS results in MB self-aggregation that can be quenched in the presence of NaCl.

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Binding of methylene blue to polyelectrolytes containing sulfonate groups

Abstract

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