Sulfonated Poly(arylene sulfide sulfone nitrile) Multiblock Copolymers with Ordered Morphology for Proton Exchange Membranes
- Title
- Sulfonated Poly(arylene sulfide sulfone nitrile) Multiblock Copolymers with Ordered Morphology for Proton Exchange Membranes
- Author
- 이영무
- Keywords
- POLYMER ELECTROLYTE MEMBRANES; FUEL-CELL APPLICATIONS; ETHER SULFONE)S; MEDIUM-TEMPERATURE; WATER-RETENTION; ACID GROUPS; CONDUCTIVITY; NAPHTHALENE; TRANSPORT; HUMIDITY
- Issue Date
- 2013-10
- Publisher
- ACS AMERICAN CHEMICAL SOCIETY
- Citation
- MACROMOLECULES, 2013, 46(19), P.7797-7804
- Abstract
- Ordered morphologies in disulfonated poly(arylene sulfide sulfone nitrile) (SPSN) copolymers were generated via thermal annealing followed by multiblock copolymer synthesis. While SPSN random copolymers (R-SPSN) showed featureless morphologies, the SPSN multiblock copolymers (B-SPSN) exhibited cocontinuous lamellar morphologies with a center-to-center interdomain size of up to 40 nm. In spite of the well-ordered, interconnected hydrophilic domains, the water self-diffusion coefficient (e.g., D = (0.7-2.0) x 10(-10) m(2) s(-1)) and proton conductivity (e.g., sigma = 0.16-0.20 S cm(-1) in deionized water at 30 degrees C) through B-SPSN were lower than those of the corresponding R-SPSN (e.g., D = (3.5-3.9) x 10(-10) m(2) s(-1) and sigma = 0.21 S cm(-1)) due to the relatively lower water uptake of the B-SPSN after thermal annealing. The reduced water uptake of B-SPSN was beneficial to reduction of peroxide degradation rate. Thermal annealing produced significant gains in morphological ordering and finer control over desired membrane properties for proton conduction applications.
- URI
- http://pubs.acs.org/doi/abs/10.1021/ma400889thttp://hdl.handle.net/20.500.11754/44563
- ISSN
- 0024-9297; 1520-5835
- DOI
- 10.1021/ma400889t
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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