Novel Crosslinker for Photopolymerization of Proton Conducting Fuel Cell Membranes
Abstract
Direct methanol fuel cells with polymer electrolyte membranes are of great interest in recent research. Several monomers and crosslinkers in a broad range of concentrations in water and NMP respectively were screened for their mechanical properties, water uptake and conductivity by photopolymerization with a polar photo initiator in porous membranes made of polypropylene and polyethersulfone, respectively. As conductive ionomer, primarily AMPS, an acrylamide with a sulfonic end group, was used. The conductive monomers were crosslinked with varying hydrophobic and hydrophilic multifunctional monomers based on (meth-) acrylates. Furthermore several new multifunctional crosslinkers based on acrylamides with enhanced thermal and ageing stability have been synthesized and tested.
The advantage of several different building blocks with known characteristics is the possibility to tune the polymer to special needs of an application. For example, some polymer compositions have good conductiv...ity at lower temperatures, whereas other polymers develop better properties at elevated temperatures. By choosing the right building blocks we were able to achieve better proton conductivity than Nafion.
Keywords:
Polymer electrolyte membrane / proton conductivity / fuel cell / monomer / crosslinkersSource:
Proceedings of the 9th International Conference on Multi-Material Micro Manufacture, 2012Publisher:
- Singapore : Research Publishing
Funding / projects:
- MULTIPLAT - Biomimetic Ultrathin Structures as a Multipurpose Platform for Nanotechnology-Based Products (EU-FP7-228943)
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - CONF AU - Kellner, Michael AU - Radovanović, Filip AU - Liska, Robert AU - Matović, Jovan PY - 2012 UR - https://dais.sanu.ac.rs/123456789/782 AB - Direct methanol fuel cells with polymer electrolyte membranes are of great interest in recent research. Several monomers and crosslinkers in a broad range of concentrations in water and NMP respectively were screened for their mechanical properties, water uptake and conductivity by photopolymerization with a polar photo initiator in porous membranes made of polypropylene and polyethersulfone, respectively. As conductive ionomer, primarily AMPS, an acrylamide with a sulfonic end group, was used. The conductive monomers were crosslinked with varying hydrophobic and hydrophilic multifunctional monomers based on (meth-) acrylates. Furthermore several new multifunctional crosslinkers based on acrylamides with enhanced thermal and ageing stability have been synthesized and tested. The advantage of several different building blocks with known characteristics is the possibility to tune the polymer to special needs of an application. For example, some polymer compositions have good conductivity at lower temperatures, whereas other polymers develop better properties at elevated temperatures. By choosing the right building blocks we were able to achieve better proton conductivity than Nafion. PB - Singapore : Research Publishing C3 - Proceedings of the 9th International Conference on Multi-Material Micro Manufacture T1 - Novel Crosslinker for Photopolymerization of Proton Conducting Fuel Cell Membranes DO - 10.3850/978-981-07-3353-7_303 UR - https://hdl.handle.net/21.15107/rcub_dais_782 ER -
@conference{ author = "Kellner, Michael and Radovanović, Filip and Liska, Robert and Matović, Jovan", year = "2012", abstract = "Direct methanol fuel cells with polymer electrolyte membranes are of great interest in recent research. Several monomers and crosslinkers in a broad range of concentrations in water and NMP respectively were screened for their mechanical properties, water uptake and conductivity by photopolymerization with a polar photo initiator in porous membranes made of polypropylene and polyethersulfone, respectively. As conductive ionomer, primarily AMPS, an acrylamide with a sulfonic end group, was used. The conductive monomers were crosslinked with varying hydrophobic and hydrophilic multifunctional monomers based on (meth-) acrylates. Furthermore several new multifunctional crosslinkers based on acrylamides with enhanced thermal and ageing stability have been synthesized and tested. The advantage of several different building blocks with known characteristics is the possibility to tune the polymer to special needs of an application. For example, some polymer compositions have good conductivity at lower temperatures, whereas other polymers develop better properties at elevated temperatures. By choosing the right building blocks we were able to achieve better proton conductivity than Nafion.", publisher = "Singapore : Research Publishing", journal = "Proceedings of the 9th International Conference on Multi-Material Micro Manufacture", title = "Novel Crosslinker for Photopolymerization of Proton Conducting Fuel Cell Membranes", doi = "10.3850/978-981-07-3353-7_303", url = "https://hdl.handle.net/21.15107/rcub_dais_782" }
Kellner, M., Radovanović, F., Liska, R.,& Matović, J.. (2012). Novel Crosslinker for Photopolymerization of Proton Conducting Fuel Cell Membranes. in Proceedings of the 9th International Conference on Multi-Material Micro Manufacture Singapore : Research Publishing.. https://doi.org/10.3850/978-981-07-3353-7_303 https://hdl.handle.net/21.15107/rcub_dais_782
Kellner M, Radovanović F, Liska R, Matović J. Novel Crosslinker for Photopolymerization of Proton Conducting Fuel Cell Membranes. in Proceedings of the 9th International Conference on Multi-Material Micro Manufacture. 2012;. doi:10.3850/978-981-07-3353-7_303 https://hdl.handle.net/21.15107/rcub_dais_782 .
Kellner, Michael, Radovanović, Filip, Liska, Robert, Matović, Jovan, "Novel Crosslinker for Photopolymerization of Proton Conducting Fuel Cell Membranes" in Proceedings of the 9th International Conference on Multi-Material Micro Manufacture (2012), https://doi.org/10.3850/978-981-07-3353-7_303 ., https://hdl.handle.net/21.15107/rcub_dais_782 .