Comparative study of the self-aggregation of rhodamine 6G in the presence of poly(sodium 4-styrenesulfonate), Poly(N -phenylmaleimide- co -acrylic acid), poly(styrene- alt -maleic acid), and poly(sodium acrylate)

Ignacio Moreno-Villoslada, Juan Pablo Fuenzalida, Gustavo Tripailaf, Rodrigo Araya-Hermosilla, Guadalupe Del C Pizarro, Oscar Guillermo Marambio, Hiroyuki Nishide

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

The interaction between rhodamine 6G and different polyelectrolytes is analyzed. Structural aspects differentiate these polyelectrolytes, such as the presence of aromatic groups and the number and localization of their respective charges, which may be directly attached to the aromatic groups or to the polymeric main chain. In the case of poly(sodium acrylate), which does not bear aromatic groups, the polyelectrolyte induces cooperative self-stacking between the dyes which is highly sensitive to the ionic strength, due to the predominance of long-range electrostatic interactions between the polymer and the dye. In the case of poly(sodium 4-styrenesulfonate), whose charge is directly attached to the aromatic groups, a high dispersant ability of the dyes is found and the interaction is less dependent on the ionic strength, due to the predominance of short-range aromatic-aromatic interactions between the dye and the polymer. Among the two polyelectrolytes studied for which the polymeric charge is directly attached to the main chain, and separated from the aromatic group, poly(styrene-alt-maleic acid) shows a lower dependence of the interaction on the ionic strength than poly(N-phenylmaleimide-co-acrylic acid) at a comonomer composition of 1:2, due to a higher linear aromatic density and a lower linear charge density, indicating the importance of hydrophobic forces. Both copolymers exhibit a high ability to induce cooperative self-aggregation of the dye.

Original languageEnglish
Pages (from-to)11983-11992
Number of pages10
JournalJournal of Physical Chemistry B
Volume114
Issue number37
DOIs
Publication statusPublished - 2010 Sep 23

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carbopol 940
Styrene
acrylic acid
acrylates
rhodamine
Acrylics
polystyrene
Polyelectrolytes
Coloring Agents
Agglomeration
Dyes
dyes
Sodium
sodium
acids
Ionic strength
Acids
interactions
Polymers
polymers

ASJC Scopus subject areas

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

Cite this

Comparative study of the self-aggregation of rhodamine 6G in the presence of poly(sodium 4-styrenesulfonate), Poly(N -phenylmaleimide- co -acrylic acid), poly(styrene- alt -maleic acid), and poly(sodium acrylate). / Moreno-Villoslada, Ignacio; Fuenzalida, Juan Pablo; Tripailaf, Gustavo; Araya-Hermosilla, Rodrigo; Pizarro, Guadalupe Del C; Marambio, Oscar Guillermo; Nishide, Hiroyuki.

In: Journal of Physical Chemistry B, Vol. 114, No. 37, 23.09.2010, p. 11983-11992.

Research output: Contribution to journalArticle

Moreno-Villoslada, Ignacio ; Fuenzalida, Juan Pablo ; Tripailaf, Gustavo ; Araya-Hermosilla, Rodrigo ; Pizarro, Guadalupe Del C ; Marambio, Oscar Guillermo ; Nishide, Hiroyuki. / Comparative study of the self-aggregation of rhodamine 6G in the presence of poly(sodium 4-styrenesulfonate), Poly(N -phenylmaleimide- co -acrylic acid), poly(styrene- alt -maleic acid), and poly(sodium acrylate). In: Journal of Physical Chemistry B. 2010 ; Vol. 114, No. 37. pp. 11983-11992.
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