Polymer electrolyte membranes by in situ polymerization of poly(ethylene carbonate-co-ethylene oxide) macromonomers in blends with poly(vinylidene fluoride-co-hexafluoropropylene)
Munch Elmér, Anette LU and Jannasch, Patric LU
(2007)
In Journal of Polymer Science. Part B, Polymer Physics
45(1).
p.79-90
- Abstract
- Salt-containing membranes based on polymethacrylates having poly(ethylene carbonate-co-ethylene oxide) side chains, as well as their blends with poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP), have been studied. Self-supportive ion conductive membranes were prepared by casting films of methacrylate functional poly(ethylene carbonate-co-ethylene oxide) macromonomers containing lithium bis(trifluorosulfonyl)imide (LiTFSI) salt, followed by irradiation with UV-light to polymerize the methacrylate units in situ. Homogenous electrolyte membranes based on the polymerized macromonomers showed a conductivity of 6.3 × 10-6 S cm-1 at 20 °C. The preparation of polymer blends, by the addition of PVDF-HFP to the electrolytes, was found to... (More)
- Salt-containing membranes based on polymethacrylates having poly(ethylene carbonate-co-ethylene oxide) side chains, as well as their blends with poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP), have been studied. Self-supportive ion conductive membranes were prepared by casting films of methacrylate functional poly(ethylene carbonate-co-ethylene oxide) macromonomers containing lithium bis(trifluorosulfonyl)imide (LiTFSI) salt, followed by irradiation with UV-light to polymerize the methacrylate units in situ. Homogenous electrolyte membranes based on the polymerized macromonomers showed a conductivity of 6.3 × 10-6 S cm-1 at 20 °C. The preparation of polymer blends, by the addition of PVDF-HFP to the electrolytes, was found to greatly improve the mechanical properties. However, the addition led to an increase of the glass transition temperature (Tg) of the ion conductive phase by 5 °C. The conductivity of the blend membranes was thus lower in relation to the corresponding homogeneous polymer electrolytes, and 2.5 × 10-6 S cm-1 was recorded for a membrane containing 10 wt % PVDF-HFP at 20 °C. Increasing the salt concentration in the blend membranes was found to increase the Tg of the ion conductive component and decrease the propensity for the crystallization of the PVDF-HFP component. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/162958
- author
- Munch Elmér, Anette
LU
and Jannasch, Patric
LU
- organization
- publishing date
- 2007
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- solid polymer electrolytes, poly(vinylidene fluoride-co-hexafluoropropylene), polycarbonates, heterogeneous blends
- in
- Journal of Polymer Science. Part B, Polymer Physics
- volume
- 45
- issue
- 1
- pages
- 79 - 90
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- wos:000242873200008
- scopus:33846320840
- ISSN
- 0887-6266
- DOI
- 10.1002/polb.20980
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Polymer and Materials Chemistry (LTH) (011001041)
- id
- 879b6495-de3f-4c6f-ab83-7cd4fe69ba27 (old id 162958)
- date added to LUP
- 2016-04-01 15:42:47
- date last changed
- 2022-02-12 17:17:02
@article{879b6495-de3f-4c6f-ab83-7cd4fe69ba27,
abstract = {{Salt-containing membranes based on polymethacrylates having poly(ethylene carbonate-co-ethylene oxide) side chains, as well as their blends with poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP), have been studied. Self-supportive ion conductive membranes were prepared by casting films of methacrylate functional poly(ethylene carbonate-co-ethylene oxide) macromonomers containing lithium bis(trifluorosulfonyl)imide (LiTFSI) salt, followed by irradiation with UV-light to polymerize the methacrylate units in situ. Homogenous electrolyte membranes based on the polymerized macromonomers showed a conductivity of 6.3 × 10-6 S cm-1 at 20 °C. The preparation of polymer blends, by the addition of PVDF-HFP to the electrolytes, was found to greatly improve the mechanical properties. However, the addition led to an increase of the glass transition temperature (Tg) of the ion conductive phase by 5 °C. The conductivity of the blend membranes was thus lower in relation to the corresponding homogeneous polymer electrolytes, and 2.5 × 10-6 S cm-1 was recorded for a membrane containing 10 wt % PVDF-HFP at 20 °C. Increasing the salt concentration in the blend membranes was found to increase the Tg of the ion conductive component and decrease the propensity for the crystallization of the PVDF-HFP component.}},
author = {{Munch Elmér, Anette and Jannasch, Patric}},
issn = {{0887-6266}},
keywords = {{solid polymer electrolytes; poly(vinylidene fluoride-co-hexafluoropropylene); polycarbonates; heterogeneous blends}},
language = {{eng}},
number = {{1}},
pages = {{79--90}},
publisher = {{John Wiley & Sons Inc.}},
series = {{Journal of Polymer Science. Part B, Polymer Physics}},
title = {{Polymer electrolyte membranes by in situ polymerization of poly(ethylene carbonate-co-ethylene oxide) macromonomers in blends with poly(vinylidene fluoride-co-hexafluoropropylene)}},
url = {{http://dx.doi.org/10.1002/polb.20980}},
doi = {{10.1002/polb.20980}},
volume = {{45}},
year = {{2007}},
}