Provider: Ingenta Connect
Database: Ingenta Connect
Content: application/x-research-info-systems
TY - ABST
AU - Yang, Jung-Eun
AU - Hong, Young Taik
AU - Lee, Jae-Suk
TI - Synthesis and Characterization of Polystyrene-Poly(arylene ether sulfone)-Polystyrene Triblock Copolymer for Proton Exchange Membrane Applications
JO - Journal of Nanoscience and Nanotechnology
PY - 2006-11-01T00:00:00///
VL - 6
IS - 11
SP - 3594
EP - 3598
KW - PROTON EXCHANGE MEMBRANE
KW - POLY(ARYLENE ETHER SULFONE)
KW - BLOCK COPOLYMERS
KW - DIRECT METHANOL FUEL CELL
KW - SULFONATION
N2 - The polystyrene-poly(arylene ether sulfone)-polystyrene (PS-PAES-PS) coil-semirod-coil triblock copolymer was synthesized by the condensation reaction of PS-COCl and H2N-PAES-NH2 telechelic polymers. The reaction was facile characterized by high yields with a perfect
control over the block lengths. Following a known reaction protocol it was possible to selectively sulfonate the PS block of the triblock copolymer that led to the sulfonated copolymer sPS-PAES-sPS. Studies on its proton conductivity and methanol permeability were carried out to evaluate its
use as the proton exchange membrane in direct methanol fuel cells. Proton conductivity of the membranes was increased depending on the sulfonic acid group content in the sulfonated polymer. The membranes exhibited good dimensional and thermal stability, and low methanol permeability compared
to Nafion 117.
UR - https://www.ingentaconnect.com/content/asp/jnn/2006/00000006/00000011/art00064
M3 - doi:10.1166/jnn.2006.17989
UR - https://doi.org/10.1166/jnn.2006.17989
ER -