Polythiophene-based conjugated polyelectrolyte: Optical properties and association behavior in solution

[Display omitted] •Association behavior of the conjugated polyelectrolyte, slow relaxation processes.•Solvatochromism and concentration dependence of optical properties.•Translation of architecture between solid state and solution – mesoscale effects.•Combination of spectroscopic, microscopic and li...

Full description

Saved in:
Bibliographic Details
Published in:Synthetic metals 2015-04, Vol.202, p.16-24
Main Authors: Urbánek, Pavel, di Martino, Antonio, Gladyš, Sviatoslav, Kuřitka, Ivo, Minařík, Antonín, Pavlova, Ewa, Bondarev, Dmitrij
Format: Article
Language:English
Subjects:
Assembling
Chains (polymeric)
Conjugated polymer
Evolution
Fluorescence
Optical properties
Polyelectrolyte
Polyelectrolytes
Polythiophene
Self-assembly
Spectroscopy
Transmission electron microscopy
UV–vis spectroscopy
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:[Display omitted] •Association behavior of the conjugated polyelectrolyte, slow relaxation processes.•Solvatochromism and concentration dependence of optical properties.•Translation of architecture between solid state and solution – mesoscale effects.•Combination of spectroscopic, microscopic and light scattering methods. Conjugated polyelectrolyte with polythiophene main chain and imidazolium side groups, poly{3-[6-(1-methylimidazolium-3-yl) hexyl]thiophene-2,5-diyl bromide}, is investigated. Polymer architecture with hydrophobic main chain and hydrophilic side groups is responsible for the inconvenient behavior of the polymer in solution. Absorption and emission characteristics and supramolecular assembling are investigated by spectroscopic, microscopic and light-scattering methods. We report significant solvatochromism which is observable by a naked eye. Water solutions and mixed solvent systems exhibit most interesting features: supramolecular assembling was investigated by DLS, AFM and TEM techniques and common spectroscopic methods such as UV–vis and fluorescence spectroscopy. Moreover, slow relaxation processes take part in water as it is evidenced by time evolution of absorption spectra. It is a result of vanishing of inter- and intramolecular interactions. These interactions are responsible for extraordinary solution behavior of the ionic polythiophene.
ISSN:0379-6779
1879-3290
DOI:10.1016/j.synthmet.2015.01.015