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In-situ analysis of volatiles obtained by catalytic cracking of polyethylene with HZSM-5, HY, and HMCM-41 /
(2002)
When polymer/catalyst samples are heated in hydrogen, the extent of hydrogenation is reflected by reduced residue content and variations in Ea versus temperature curves. The addition of platinum increases volatile aromatic ...
Synthesis and characterization of polynitro-[2.2]paracyclophanes, a novel xylylene polymer, and poly(p-phenylene sulfoxide).
(The University of Oklahoma., 1999)
A less closely related polymer, poly(p-phenylene sulfoxide) (PPSX) (18) was synthesized by a novel homogenous oxidation of poly(p-phenylene sulfide) 17 with neat fuming nitric acid, fuming nitric acid in trifluoroacetic ...
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 ...
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 ...
Synthesis and spectroscopic studies of polymer electrolyte hosts: Linear poly(ethylenimine), linear poly(N-methylethylenimine) and linear poly(N-2-(2-methoxyethoxy)ethylethylenimine).
(2002)
Three topics that are of interest to scientists in polymer electrolytes are: (1) ion-ion interactions; (2) ion-polymer interactions; and (3) how these interactions correlate to ionic conductivity. A spectroscopic study of ...
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, ...
Surfactant-cycladextrin binding, mixed surfactant micelles, and new surface tension methods.
(1998)
A stainless steel rod with precisely known radius is used to measure surface tensions. One of the most important aspects in two new methods is that a top-loading analytical laboratory balance of 0.1 to 1 mg precision can ...
SYNTHESIS OF, AND APPLICATION OF THE COMPENSATED ARRHENIUS FORMULATION TO, ORGANIC CARBONATES AND OLIGOETHERS
(2013-12-20)
It has been proposed and shown that transport properties like self-diffusion and ionic conductivity in organic liquids are dependent on the dielectric constants and the activation energies in these liquids. The formal ...
Monomeric, dimeric, and polymeric cationic surfactants.
(1997)
Another subject of this work in chapter 4 is the binding of chromate anions by polymeric surfactants, namely polyethyleneimine (PEI), hexyl PEI and lauryl PEI. PEI, one of the most widely studied polyelectrolytes, is known ...