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Local structures and conductivity in polyethylenimine and polyphosphazene polymer electrolytes.
(2002)
Linear polyethylenimine (LPEI) is structurally analogous to poly(ethylene oxide), with an N-H group in place of the ether oxygen. LPEI systems with dissolved lithium and sodium triflate were prepared and characterized via ...
Testing recently-developed molecular dynamics protocols for structure prediction of polypeptides and prion proteins.
(2007)
Two MD protocols were recently developed that allow a polypeptide to search the PE surface in search of the global PE minimum, which should correspond to the experimental structure. alpha-helical secondary structures have ...
Electrode materials for lithium rechargeable batteries: Synthesis, spectroscopic studies and electrochemical performance.
(1997)
Three distinct $\rm Li\sb{x}V\sb2O\sb5$ phases, $\delta, \ \varepsilon, $ and $\gamma$-$\rm Li\sb{x}V\sb2O\sb5, $ were obtained through a chemical intercalation reaction and solid state reactions. Infrared and Raman spectra ...
Synthesis and carbon-13 NMR studies of liquid crystals.
(2000)
Eight series of liquid crystals containing an electron-donating group at one end of a conjugated system and an electron-withdrawing group at the other end have been synthesized. The electron-donating group is 4- ...
Synthesis, structure and electrochemical performance of poly(ethylenimine)-based electrolytes.
(2004)
Ion conducting polymers have found application as the electrolyte host in lithium batteries and proton exchange membrane fuel cells as a result of desirable processing and adequate ionic conductivity. Poly(ethylenimine) ...
Polyamine-based polymer electrolyte modification and performance.
(2005)
Finally, lithium secondary batteries that function at room temperature were built using LPAG2EI based SPE and recycled at different temperatures and drain rates for preliminary evaluation. Although the recycling results ...
Characterization of pure and phase-stabilized sodium phosphate.
(1998)
This work illustrates the necessity of using a variety of techniques when characterizing these systems, which undergo complex structural changes that cannot be completely characterized using a single technique. The XRD ...
Hyrdrogen [sic] bonding interactions and cation coordination effects in nitrogen-based polymer electrolytes and model systems /
(2006)
Studies of the model-salt solutions were considerably aided by the formation of crystalline compounds whose structures were solved by single crystal x-ray diffraction methods. The frequency shifts observed in the NH ...
Characterization of crystalline and amorphous phases in poly(N-methylethylenimine) polymer electrolytes and model systems.
(2003)
LPEI is analogous to PEO, except LPEI has a heteroatom that is synthetically versatile because different side groups can be readily attached. LPEI:salt systems are not well understood as polymer electrolytes. Therefore, ...