Solubilization of poly{1,4-phenylene-[9,9-bis(4-phenoxy-butylsulfonate)]fluorene-2,7-diyl} in Water by Non-Ionic Amphiphiles
Burrows, Hugh D. ; Tapia, Maria J. ; Fonesca, Sofia M. ; Pradhan, Swapna ; Scherf, Ullrich ; Silva, Cláudia L. ; Pais, Alberto A. C. C. ; Valente, Artur J. M. ; Schillén, Karin LU
and Alfredsson, Viveka
LU
, et al.
(2009)
In Langmuir
25(10).
p.5545-5556
- Abstract
- In the presence of the nonionic alkyloxyethylene surfactant n-dodecylpentaoxyethylene glycol ether (C12E5), the
anionic conjugated polyelectrolyte (CPE) poly{1,4-phenylene-[9,9-bis(4-phenoxy-butylsulfonate)]fluorene-2,7-diyl}
(PBS-PFP) dissolves in water, leading to a blue shift in fluorescence and dramatic increases in fluorescence quantum
yields above the surfactant critical micelle concentration (cmc). No significant changes were seen with a poly(ethylene
oxide) of similar size to the surfactant headgroup, confirming that specific surfactant-polyelectrolyte interactions are
important. From UV-visible and fluorescence spectroscopy, dynamic light scattering (DLS), small-angle X-ray
... (More) - In the presence of the nonionic alkyloxyethylene surfactant n-dodecylpentaoxyethylene glycol ether (C12E5), the
anionic conjugated polyelectrolyte (CPE) poly{1,4-phenylene-[9,9-bis(4-phenoxy-butylsulfonate)]fluorene-2,7-diyl}
(PBS-PFP) dissolves in water, leading to a blue shift in fluorescence and dramatic increases in fluorescence quantum
yields above the surfactant critical micelle concentration (cmc). No significant changes were seen with a poly(ethylene
oxide) of similar size to the surfactant headgroup, confirming that specific surfactant-polyelectrolyte interactions are
important. From UV-visible and fluorescence spectroscopy, dynamic light scattering (DLS), small-angle X-ray
scattering (SAXS), cryogenic transmission electron microscopy (cryo-TEM), and electrical conductivity, together with
our published NMR and small-angle neutron scattering (SANS) results, we provide a coherent model for this behavior
in terms of breakup of PBS-PFP clusters through polymer-surfactant association leading to cylindrical aggregates
containing isolated polymer chains. This is supported by molecular dynamics simulations, which indicate stable
polymer-surfactant structures and also provide indications of the tendency of C12E5 to break up polymer clusters to
form these mixed polymer-surfactant aggregates. Radial electron density profiles of the cylindrical cross section
obtained from SAXS results reveal the internal structure of such inhomogeneous species. DLS and cryo-TEM results
show that at higher surfactant concentrations the micelles start to grow, possibly partially due to formation of long,
threadlike species. Other alkyloxyethylene surfactants, together with poly(propylene glycol) and hydrophobically
modified poly(ethylene glycol), also solubilize this polymer in water, and it is suggested that this results from a balance
between electrostatic (or ion-dipole), hydrophilic, and hydrophobic interactions. There is a small, but significant,
dependence of the emission maximum on the local environment. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1405914
- author
- Burrows, Hugh D.
; Tapia, Maria J.
; Fonesca, Sofia M.
; Pradhan, Swapna
; Scherf, Ullrich
; Silva, Cláudia L.
; Pais, Alberto A. C. C.
; Valente, Artur J. M.
; Schillén, Karin
LU
and Alfredsson, Viveka
LU
, et al. (More)
- Burrows, Hugh D.
; Tapia, Maria J.
; Fonesca, Sofia M.
; Pradhan, Swapna
; Scherf, Ullrich
; Silva, Cláudia L.
; Pais, Alberto A. C. C.
; Valente, Artur J. M.
; Schillén, Karin
LU
; Alfredsson, Viveka
LU
; Carnerup, Anna
LU
; Tomšič, Matija
and Jamnik, Andrej
(Less)
- organization
- publishing date
- 2009
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Langmuir
- volume
- 25
- issue
- 10
- pages
- 5545 - 5556
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000266081000022
- scopus:66249122070
- ISSN
- 0743-7463
- DOI
- 10.1021/la8042044
- language
- English
- LU publication?
- yes
- id
- 52bd35d4-dfe5-4095-abcd-0bb36057903f (old id 1405914)
- date added to LUP
- 2016-04-01 12:13:42
- date last changed
- 2022-01-27 00:44:07
@article{52bd35d4-dfe5-4095-abcd-0bb36057903f,
abstract = {{In the presence of the nonionic alkyloxyethylene surfactant n-dodecylpentaoxyethylene glycol ether (C12E5), the<br/><br>
anionic conjugated polyelectrolyte (CPE) poly{1,4-phenylene-[9,9-bis(4-phenoxy-butylsulfonate)]fluorene-2,7-diyl}<br/><br>
(PBS-PFP) dissolves in water, leading to a blue shift in fluorescence and dramatic increases in fluorescence quantum<br/><br>
yields above the surfactant critical micelle concentration (cmc). No significant changes were seen with a poly(ethylene<br/><br>
oxide) of similar size to the surfactant headgroup, confirming that specific surfactant-polyelectrolyte interactions are<br/><br>
important. From UV-visible and fluorescence spectroscopy, dynamic light scattering (DLS), small-angle X-ray<br/><br>
scattering (SAXS), cryogenic transmission electron microscopy (cryo-TEM), and electrical conductivity, together with<br/><br>
our published NMR and small-angle neutron scattering (SANS) results, we provide a coherent model for this behavior<br/><br>
in terms of breakup of PBS-PFP clusters through polymer-surfactant association leading to cylindrical aggregates<br/><br>
containing isolated polymer chains. This is supported by molecular dynamics simulations, which indicate stable<br/><br>
polymer-surfactant structures and also provide indications of the tendency of C12E5 to break up polymer clusters to<br/><br>
form these mixed polymer-surfactant aggregates. Radial electron density profiles of the cylindrical cross section<br/><br>
obtained from SAXS results reveal the internal structure of such inhomogeneous species. DLS and cryo-TEM results<br/><br>
show that at higher surfactant concentrations the micelles start to grow, possibly partially due to formation of long,<br/><br>
threadlike species. Other alkyloxyethylene surfactants, together with poly(propylene glycol) and hydrophobically<br/><br>
modified poly(ethylene glycol), also solubilize this polymer in water, and it is suggested that this results from a balance<br/><br>
between electrostatic (or ion-dipole), hydrophilic, and hydrophobic interactions. There is a small, but significant,<br/><br>
dependence of the emission maximum on the local environment.}},
author = {{Burrows, Hugh D. and Tapia, Maria J. and Fonesca, Sofia M. and Pradhan, Swapna and Scherf, Ullrich and Silva, Cláudia L. and Pais, Alberto A. C. C. and Valente, Artur J. M. and Schillén, Karin and Alfredsson, Viveka and Carnerup, Anna and Tomšič, Matija and Jamnik, Andrej}},
issn = {{0743-7463}},
language = {{eng}},
number = {{10}},
pages = {{5545--5556}},
publisher = {{The American Chemical Society (ACS)}},
series = {{Langmuir}},
title = {{Solubilization of poly{1,4-phenylene-[9,9-bis(4-phenoxy-butylsulfonate)]fluorene-2,7-diyl} in Water by Non-Ionic Amphiphiles}},
url = {{http://dx.doi.org/10.1021/la8042044}},
doi = {{10.1021/la8042044}},
volume = {{25}},
year = {{2009}},
}