Noda, Y., et al., Thermosetting polymer for dynamic nuclear polarization: Solidification of an epoxy resin mixture including TEMPO. Nucl. Instrum. Methods Phys. Res., Sect. A, 2015. 776(0): p. 8-14.
We investigated the dynamic nuclear polarization (DNP) of typical thermosetting polymers (two-component type epoxy resins; Araldite® Standard or Araldite® Rapid) doped with a (2,2,6,6-tetramethylpiperidine-1-yl)oxy (TEMPO) radical. The doping process was developed by carefully considering the decomposition of TEMPO during the solidification of the epoxy resin. The TEMPO electron spin in each two-component paste decayed slowly, which was favorable for our study. Furthermore, despite the dissolved TEMPO, the mixture of the two-component paste successfully solidified. With the resulting TEMPO-doped epoxy-resin samples, DNP experiments at 1.2 K and 3.35 T indicated a magnitude of a proton-spin polarization up to 39%. This polarization is similar to that (35%) obtained for TEMPO-doped polystyrene (PS), which is often used as a standard sample for DNP. To combine this solidification of TEMPO-including mixture with a resin-casting technique enables a creation of polymeric target materials with a precise and complex structure.
Effects of the electron polarization on dynamic nuclear polarization in solids
From The DNP-NMR Blog:
Effects of the electron polarization on dynamic nuclear polarization in solids
Hovav, Y., et al., Effects of the electron polarization on dynamic nuclear polarization in solids. Phys Chem Chem Phys, 2015. 17(8): p. 6053-65.
http://www.ncbi.nlm.nih.gov/pubmed/25640165
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03-23-2015 08:22 PM
Cross-polarization for dissolution dynamic nuclear polarization
From The DNP-NMR Blog:
Cross-polarization for dissolution dynamic nuclear polarization
Batel, M., et al., Cross-polarization for dissolution dynamic nuclear polarization. Phys Chem Chem Phys, 2014. 16(39): p. 21407-16.
http://www.ncbi.nlm.nih.gov/pubmed/25182534
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10-08-2014 05:52 PM
Cross Polarization for Dissolution Dynamic Nuclear Polarization
From The DNP-NMR Blog:
Cross Polarization for Dissolution Dynamic Nuclear Polarization
Batel, M., et al., Cross Polarization for Dissolution Dynamic Nuclear Polarization. Phys. Chem. Chem. Phys., 2014.
http://dx.doi.org/10.1039/C4CP02696A
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08-22-2014 07:27 PM
Dynamic nuclear polarisation NMR of nanosized zirconium phosphate polymer fillers
From The DNP-NMR Blog:
Dynamic nuclear polarisation NMR of nanosized zirconium phosphate polymer fillers
Ziarelli, F., et al., Dynamic nuclear polarisation NMR of nanosized zirconium phosphate polymer fillers. Chemical Communications, 2014. 50(70): p. 10137-10139.
http://dx.doi.org/10.1039/C4CC02723J
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08-09-2014 05:20 AM
Hyperpolarization of deuterated metabolites via remote cross-polarization and dissolution dynamic nuclear polarization
From The DNP-NMR Blog:
Hyperpolarization of deuterated metabolites via remote cross-polarization and dissolution dynamic nuclear polarization
Vuichoud, B., et al., Hyperpolarization of deuterated metabolites via remote cross-polarization and dissolution dynamic nuclear polarization. J Phys Chem B, 2014. 118(5): p. 1411-5.
http://www.ncbi.nlm.nih.gov/pubmed/24397585
High-Field (13)C Dynamic Nuclear Polarization with a Radical Mixture
From the The DNP-NMR Blog:
High-Field (13)C Dynamic Nuclear Polarization with a Radical Mixture
Michaelis, V.K., et al., High-Field (13)C Dynamic Nuclear Polarization with a Radical Mixture. J Am Chem Soc, 2013.
http://www.ncbi.nlm.nih.gov/pubmed/23373472
Thermosetting polymer for dynamic nuclear polarization: Solidification of an epoxy resin mixture including TEMPO
Linear Mode
