Influence of the linear aromatic density on methylene blue aggregation around polyanions containing sulfonate groups

Ignacio Moreno-Villoslada, César Torres-Gallegos, Rodrigo Araya-Hermosilla, Hiroyuki Nishide

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

The aggregation of methylene blue around different polyelectrolytes is studied by diafiltration, UV-vis, and 1H NMR spectroscopies. Poly(sodium acrylate-co-sodium maléate) induces the formation of higher-order aggregates, showing a typical polyelectrolyte behavior dominated by long-range electrostatic interactions with the dye which are highly dependent on the ionic strength. Poly(sodium 4-styrenesulfonate) presents a high dispersant ability of methylene blue, showing what we can call a typical polyaromatic-anion behavior characterized by the presence of short-range aromatic-aromatic interactions with the dye which are less dependent on the ionic strength. An intermediate behavior is found for the copolymers poly(sodium 4-styrenesulfonate-co-sodium maleate) at two different comonomer compositions, related to a different probability of the polymers to form and stabilize ion pairs in hydrophobic environments. Their behavior is a function of the linear aromatic density, which is related to the comonomeric structure.

Original languageEnglish
Pages (from-to)4151-4158
Number of pages8
JournalJournal of Physical Chemistry B
Volume114
Issue number12
DOIs
Publication statusPublished - 2010 Apr 1

Fingerprint

carbopol 940
Methylene Blue
methylene blue
sulfonates
Ionic strength
Polyelectrolytes
Coloring Agents
Agglomeration
Sodium
sodium
Coulomb interactions
Nuclear magnetic resonance spectroscopy
Anions
Polymers
Copolymers
Ions
Dyes
dyes
maleates
Chemical analysis

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Materials Chemistry
  • Surfaces, Coatings and Films

Cite this

Influence of the linear aromatic density on methylene blue aggregation around polyanions containing sulfonate groups. / Moreno-Villoslada, Ignacio; Torres-Gallegos, César; Araya-Hermosilla, Rodrigo; Nishide, Hiroyuki.

In: Journal of Physical Chemistry B, Vol. 114, No. 12, 01.04.2010, p. 4151-4158.

Research output: Contribution to journalArticle

Moreno-Villoslada, Ignacio ; Torres-Gallegos, César ; Araya-Hermosilla, Rodrigo ; Nishide, Hiroyuki. / Influence of the linear aromatic density on methylene blue aggregation around polyanions containing sulfonate groups. In: Journal of Physical Chemistry B. 2010 ; Vol. 114, No. 12. pp. 4151-4158.
@article{66e46c49ec204564a2804caab4cd2de5,
title = "Influence of the linear aromatic density on methylene blue aggregation around polyanions containing sulfonate groups",
abstract = "The aggregation of methylene blue around different polyelectrolytes is studied by diafiltration, UV-vis, and 1H NMR spectroscopies. Poly(sodium acrylate-co-sodium mal{\'e}ate) induces the formation of higher-order aggregates, showing a typical polyelectrolyte behavior dominated by long-range electrostatic interactions with the dye which are highly dependent on the ionic strength. Poly(sodium 4-styrenesulfonate) presents a high dispersant ability of methylene blue, showing what we can call a typical polyaromatic-anion behavior characterized by the presence of short-range aromatic-aromatic interactions with the dye which are less dependent on the ionic strength. An intermediate behavior is found for the copolymers poly(sodium 4-styrenesulfonate-co-sodium maleate) at two different comonomer compositions, related to a different probability of the polymers to form and stabilize ion pairs in hydrophobic environments. Their behavior is a function of the linear aromatic density, which is related to the comonomeric structure.",
author = "Ignacio Moreno-Villoslada and C{\'e}sar Torres-Gallegos and Rodrigo Araya-Hermosilla and Hiroyuki Nishide",
year = "2010",
month = "4",
day = "1",
doi = "10.1021/jp909105r",
language = "English",
volume = "114",
pages = "4151--4158",
journal = "Journal of Physical Chemistry B Materials",
issn = "1520-6106",
publisher = "American Chemical Society",
number = "12",

}

TY - JOUR

T1 - Influence of the linear aromatic density on methylene blue aggregation around polyanions containing sulfonate groups

AU - Moreno-Villoslada, Ignacio

AU - Torres-Gallegos, César

AU - Araya-Hermosilla, Rodrigo

AU - Nishide, Hiroyuki

PY - 2010/4/1

Y1 - 2010/4/1

N2 - The aggregation of methylene blue around different polyelectrolytes is studied by diafiltration, UV-vis, and 1H NMR spectroscopies. Poly(sodium acrylate-co-sodium maléate) induces the formation of higher-order aggregates, showing a typical polyelectrolyte behavior dominated by long-range electrostatic interactions with the dye which are highly dependent on the ionic strength. Poly(sodium 4-styrenesulfonate) presents a high dispersant ability of methylene blue, showing what we can call a typical polyaromatic-anion behavior characterized by the presence of short-range aromatic-aromatic interactions with the dye which are less dependent on the ionic strength. An intermediate behavior is found for the copolymers poly(sodium 4-styrenesulfonate-co-sodium maleate) at two different comonomer compositions, related to a different probability of the polymers to form and stabilize ion pairs in hydrophobic environments. Their behavior is a function of the linear aromatic density, which is related to the comonomeric structure.

AB - The aggregation of methylene blue around different polyelectrolytes is studied by diafiltration, UV-vis, and 1H NMR spectroscopies. Poly(sodium acrylate-co-sodium maléate) induces the formation of higher-order aggregates, showing a typical polyelectrolyte behavior dominated by long-range electrostatic interactions with the dye which are highly dependent on the ionic strength. Poly(sodium 4-styrenesulfonate) presents a high dispersant ability of methylene blue, showing what we can call a typical polyaromatic-anion behavior characterized by the presence of short-range aromatic-aromatic interactions with the dye which are less dependent on the ionic strength. An intermediate behavior is found for the copolymers poly(sodium 4-styrenesulfonate-co-sodium maleate) at two different comonomer compositions, related to a different probability of the polymers to form and stabilize ion pairs in hydrophobic environments. Their behavior is a function of the linear aromatic density, which is related to the comonomeric structure.

UR - http://www.scopus.com/inward/record.url?scp=77950208229&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77950208229&partnerID=8YFLogxK

U2 - 10.1021/jp909105r

DO - 10.1021/jp909105r

M3 - Article

VL - 114

SP - 4151

EP - 4158

JO - Journal of Physical Chemistry B Materials

JF - Journal of Physical Chemistry B Materials

SN - 1520-6106

IS - 12

ER -