The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Salt Doping in PEO-Containing Block Copolymers: Counterion and Concentration Effects
Abstract
The phase behavior of lithium salt-doped poly(styrene- b -ethylene oxide) (PS−PEO) was studied as a function of salt concentration, lithium (Li) counterion (X), and annealing temperature. Three LiX salts were employed in this work: LiClO 4, LiCF 3 SO 3, and LiAsF 6 . Increasing the salt doping ratio ([EO]:[Li]) from 48:1 to 3:1 led to morphological changes from hexagonally packed cylinders to lamellar morphologies; however, comparison between the small-angle X-ray scattering (SAXS) and transmission electron microscopy (TEM) results shows that the location of these morphological changes are altered by the different counterions. We interpret our SAXS, TEM, and differential scanning calorimetry data using strong segregation theory to estimate an effective interaction parameter (χ eff ) for our salt-doped copolymers. This χ eff varies linearly with salt concentration for a single PS-PEO:LiX material; however, the slope for each χ eff,PS−PEO:LiX is influenced by the nature of the counterion. We rationalize these effects by examining the Lewis acidity of each anion.
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Cites
Fetters, L. J., Lohse, D. J., Richter, D., Witten, T. A., & Zirkel, A. (1994) · Macromolecules · doi:10.1021/ma00095a001 · Cited by 1,999
Cited by
Block copolymer electrolytes for rechargeable lithium batteries
Young, W., Kuan, W., & Epps (2014) · Journal of Polymer Science Part B: Polymer Physics · doi:10.1002/polb.23404 · Cited by 417
Self-citationThe Block Copolymer Phase Behavior Database
Rebello, N. J., Arora, A., Mochigase, H., Lin, T.-S., Shi, J., Audus, D. J., Muckley, E. S., Osmani, A., & Olsen, B. D. (2024) · Journal of Chemical Information and Modeling · doi:10.1021/acs.jcim.4c00242 · Cited by 12
Metadata
- Authors
- Young, W.-S., & Epps, T. H.
- Venue
- Macromolecules
- Publisher
- American Chemical Society (ACS)
- Published
- 2009-03-13
- Volume
- 42
- Issue
- 7
- Pages
- 2672-2678
- ISSN
- 0024-9297 (ISSN-L)
- 1520-5835
- OpenAlex
- W2015603683
- Cited by
- 205
- References
- 1
- FWCI
- 4.15
- Type
- journal article
- Language
- en
- Open access
- closed
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