Aqueous Solution Behavior of Anionic Fluorene-co-thiophene-Based Conjugated Polyelectrolytes
(2009) In ACS Applied Materials and Interfaces 1(4). p.864-874- Abstract
- 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... (More)
- 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. (Less)
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https://lup.lub.lu.se/record/1463512
- author
- organization
- publishing date
- 2009
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- copolymers, fluorene-thiophene, conjugated polyelectrolytes, solution processing, polyelectrolyte aggregation
- in
- ACS Applied Materials and Interfaces
- volume
- 1
- issue
- 4
- pages
- 864 - 874
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000267536100018
- scopus:77950585168
- pmid:20356013
- ISSN
- 1944-8244
- DOI
- 10.1021/am800267n
- language
- English
- LU publication?
- yes
- id
- 2dcf1546-4130-4fdd-a64c-eaafbab241fc (old id 1463512)
- date added to LUP
- 2016-04-01 12:16:04
- date last changed
- 2022-03-28 22:35:10
@article{2dcf1546-4130-4fdd-a64c-eaafbab241fc, abstract = {{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.}}, author = {{Burrows, Hugh D. and Tapia, Maria J. and Fonseca, Sofia M. and Valente, Artur J. M. and Lobo, Victor M. M. and Justino, Licinia L. G. and Qiu, Song and Pradhan, Swapna and Scherf, Ullrich and Chattopadhyay, Nitin and Knaapila, Matti and Garamus, Vasil M.}}, issn = {{1944-8244}}, keywords = {{copolymers; fluorene-thiophene; conjugated polyelectrolytes; solution processing; polyelectrolyte aggregation}}, language = {{eng}}, number = {{4}}, pages = {{864--874}}, publisher = {{The American Chemical Society (ACS)}}, series = {{ACS Applied Materials and Interfaces}}, title = {{Aqueous Solution Behavior of Anionic Fluorene-co-thiophene-Based Conjugated Polyelectrolytes}}, url = {{http://dx.doi.org/10.1021/am800267n}}, doi = {{10.1021/am800267n}}, volume = {{1}}, year = {{2009}}, }