Andrew P. Chafin

TL;DR: In this paper, a new polyazapolycyclic caged polynitramines are described, and a ring-cleavage nitrosation of the new hexamine-wurtzitane compound 3,5,7,9-tetraazahexacyclo-[9.3.13,7.02,9.04,13.05,10]-hexadecane (10).

TL;DR: In this paper, a supercapacitor comprising a poly(3,4-ethylendioxythiophene) (PEDOT) and poly (3, 4-propylenedioxyntiophene (PProDOT) was used as electrode couples for the capacitor and a pair of gel electrolyte layers disposed between the electrodes.

TL;DR: In this article, the condensation of formaldehyde, glyoxal, and benzylamine, in a stoichiometric ratio, leads to 2,4,6,8-tetrabenzyl-2, 4, 6, 8-Tetrabicyclo[3.3.0] octane (1d) in methanol solvent with formic acid catalyst.

Abstract: Four alkyl diamondoids, 1-pentyladamantane (PA), 2-butyladamantane (BA), 2-propyladamantane (2-PrA), and 2-ethyladamantane (EA), were synthesized on a preparative scale, and key fuel properties, including density, net heat of combustion, low-temperature viscosity, and derived cetane number (DCN), were measured The fuel molecules had densities up to 17% higher than conventional jet fuel and volumetric net heats of combustion comparable to or exceeding that of the synthetic missile fuel JP-10 Remarkably, the alkyl diamondoid fuels had DCNs in the range of 42–49, which should allow for their efficient combustion in diesel engines PA, BA, and 2-PrA all had essentially the same DCN (∼49), while the short alkyl chain in EA lowered the value to 427 Bond dissociation energies for the formation of diradicals from 2-PrA and PA were calculated with density functional theory methods to gain a qualitative understanding of potential combustion mechanisms Ring opening of the adamantane core during combustion is pr

TL;DR: In this article, the authors used thermogravimetric analysis to study the reactivity of aluminum powders in air, oxygen, and nitrogen, and used the data to characterize active Al content, Al oxide content, volatile impurity content, particle size, and particle size distribution.