Search: onr:"swepub:oai:lup.lub.lu.se:2dcf1546-4130-4fdd-a64c-eaafbab241fc" >
Aqueous Solution Be...
Aqueous Solution Behavior of Anionic Fluorene-co-thiophene-Based Conjugated Polyelectrolytes
-
Burrows, Hugh D. (author)
-
Tapia, Maria J. (author)
-
Fonseca, Sofia M. (author)
-
show more...
-
Valente, Artur J. M. (author)
-
Lobo, Victor M. M. (author)
-
Justino, Licinia L. G. (author)
-
Qiu, Song (author)
-
Pradhan, Swapna (author)
-
Scherf, Ullrich (author)
-
Chattopadhyay, Nitin (author)
-
- Knaapila, Matti (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
-
Garamus, Vasil M. (author)
-
show less...
-
(creator_code:org_t)
- 2009-03-20
- 2009
- English.
-
In: ACS Applied Materials and Interfaces. - : American Chemical Society (ACS). - 1944-8244 .- 1944-8252. ; 1:4, s. 864-874
- Related links:
-
http://dx.doi.org/10...
-
show more...
-
https://lup.lub.lu.s...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- Two anionic fluorene-thiophene alternating copolymers, poly[9,9-bis(4-sulfonylbutoxyphenyl)fluorene-2,7-diyl-2,5-thienylene] (PBS-PFT) and poly [9,9-bis(4-sulfonylbutoxyphenyl)fluorene-2,7-diyl-2,2'-bithiophene-5,5'- diyl] (PBS-PF2T), have been synthesized and their solution behaviors in water studied by UV-vis absorption spectroscopy, fluorescence, and electrical conductivity and compared with that of the previously studied conjugated polyelectrolyte (CPE) poly[9,9-bis(4-sulfonylbutoxyphenyl)fluorene-2,7-diyl-1,4-phenylene] (PBS-PFP). These conjugated polymers do not form solutions at the molecular level in water but instead form clusters. information on the structure of these clusters for PBS-PF2T comes from small-angle X-ray and neutron scattering. The relative ease of dispersing the copolymers in water increases with an increase in the number Of thiophene rings in these alternating copolymers. Semiempirical calculations on the structure suggest that this results from bending of the chains and increased conformational flexibility, decreasing interchain interactions. These CPEs can be dissolved in water at the molecular level using the nonionic surfactants n-dodecylpentaoxyethylene glycol ether (C12E5) or Triton X-100 to obtain systems with increased photoluminescence quantum yield and increased electrical conductivity that can be solution-processed for potential applications as components of sensory or optoelectronic devices.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- copolymers
- fluorene-thiophene
- conjugated polyelectrolytes
- solution processing
- polyelectrolyte aggregation
Publication and Content Type
- for (subject category)
- ref (subject category)
Find in a library
To the university's database
- By the author/editor
-
Burrows, Hugh D.
-
Tapia, Maria J.
-
Fonseca, Sofia M ...
-
Valente, Artur J ...
-
Lobo, Victor M. ...
-
Justino, Licinia ...
-
show more...
-
Qiu, Song
-
Pradhan, Swapna
-
Scherf, Ullrich
-
Chattopadhyay, N ...
-
Knaapila, Matti
-
Garamus, Vasil M ...
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
- Articles in the publication
-
ACS Applied Mate ...
- By the university
-
Lund University