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Solid state nuclear magnetic resonance investigation of polymer backbone dynamics in poly(ethylene oxide) based lithium and sodium polyether-ester-sulfonate ionomers
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10.1063/1.4804654
/content/aip/journal/jcp/138/19/10.1063/1.4804654
http://aip.metastore.ingenta.com/content/aip/journal/jcp/138/19/10.1063/1.4804654

Figures

Image of FIG. 1.
FIG. 1.

The chemical structure of PEO600- X ionomer series where y represents the fraction of dimethyl 5-sulfo-isophthalate sodium/lithium salt to neutral dimethyl isophthalate.

Image of FIG. 2.
FIG. 2.

The C MAS NMR spectra of PEO600-y X ionomer series were acquired at 298 K with H decoupling. The spectrum of PEO600-11% Na is representative of the spectra obtained from 6% and 17% samples (with glass transition temperatures of 230 K and 233 K, respectively). The spectrum of PEO600-11% Li is representative of spectra from the 6% and 17% samples (with glass transition temperatures of 227 K and 230 K, respectively). The asterisk (*) indicates a resonance from the Teflon plug used in the rotor assembly.

Image of FIG. 3.
FIG. 3.

H-C CP-MAS NMR spectra of PEO600-0% plotted as a function of temperature. The spectrum at 373 K (a) is representative of spectra obtained at 333 K and 353 K.

Image of FIG. 4.
FIG. 4.

H-C CP-MAS NMR of PEO600-11%Na plotted as a function of temperature and representative of PEO600-6%Li, PEO600-11%Li, PEO600-17%Li, PEO600-6%Na, and PEO600-17%Na. The spectrum at 373 K (a) is representative of spectra obtained at 333 K and 353 K.

Image of FIG. 5.
FIG. 5.

H-C CP-MAS NMR of spectra PEO600-100%Li plotted as a function of temperature. The spectrum at 373 (a) K is representative of the spectrum at 353 K. The spectrum at 233 K (f) is representative of the spectrum at 253 K.

Image of FIG. 6.
FIG. 6.

H-C CP-MAS NMR spectra of PEO600-100%Na plotted as a function of temperature. The spectrum at 373 K (a) is representative of the spectrum at 353 K. The spectrum at 233 K (f) is representative of the spectrum at 253 K.

Image of FIG. 7.
FIG. 7.

C CP-MAS NMR linewidths of the PEO spacer plotted as a function of (a) 1000/T and (b) T/T for PEO600- Li ionomer series. (c) C CP-MAS NMR signal intensities (peak heights) of the PEO spacer plotted as a function of T/T for PEO600- Li ionomer series.

Image of FIG. 8.
FIG. 8.

C CP-MAS NMR linewidths of the PEO spacer plotted as a function of (a) 1000/T and (b) T/T for PEO600- Na ionomer series. (c) C CP-MAS NMR signal intensities (peak heights) of the PEO spacer plotted as a function of T/T for PEO600- Na ionomer series.

Image of FIG. 9.
FIG. 9.

Cross polarization rate constant, 1/T, of the PEO spacer plotted as a function of (a) 1000/T and (b) T/T for PEO600- Li.

Image of FIG. 10.
FIG. 10.

Cross polarization rate constant, 1/T, of the PEO spacer plotted as a function of (a) 1000/T and (b) T/T for PEO600- Na.

Tables

Generic image for table
Table I.

The best fitting parameters of the CH linewidth of the PEO spacer in PEO600-y Li and PEO600-y Na.

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/content/aip/journal/jcp/138/19/10.1063/1.4804654
2013-05-21
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Solid state nuclear magnetic resonance investigation of polymer backbone dynamics in poly(ethylene oxide) based lithium and sodium polyether-ester-sulfonate ionomers
http://aip.metastore.ingenta.com/content/aip/journal/jcp/138/19/10.1063/1.4804654
10.1063/1.4804654
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