The organoclay designated as C20A was the montmorillonite ion-exchanged with dimethyl dehydrogenated
tallow ammonium ions, where tallow was composed predominantly of octadecyl chains with smaller amount of lower homologues.
Therefore, once formed, THDBT is dehydrogenated
due to the reversibility of the reaction leading to the reformation of DBT, which is eventually desulfurized by the direct mechanism.
The research team made a breakthrough when it discovered that a specific form of dehydrogenated
fuel, called polyborazylene, could be recycled with relative ease using modest energy input.
It must be emphasized that the potent antibacterial activity of coleon U (1), the only abietane with the more oxygenated and dehydrogenated
chromophoric system through rings B and C (a diosphenolic oxohydroquinone, characteristic of a coleon-type abietane).
The organo-modified montmorillonite (Nanomer[R] 1.44P) containing dehydrogenated
tallow dimethyl ammonium ([DHTDMA.sup.+]) as a surface modifier was provided by Nanocor in the form of a master batch with 50%/50% clay to PE ratio.
The organoclay was modified through a surface treatment process of montmorillonite, in the presence of quaternary ammonium salts, dimethyl dehydrogenated
tallow quaternary ammonium.
According to the supplier, C20A was modified with dimethyl dehydrogenated
tallow ammonium chloride salt.
In addition, commercial Cloisite 30B and Cloisite 20A organoclays were also used, which were modified with different functional treatments namely methyl, tallow, bis-2-hydroxyetyl, quaternary ammonium (MT2Et0H), and dimethyl, dehydrogenated
tallow, quaternary ammonium (2M2HT), respectively.
The clay used was Cloisite 20A, which is a montmorillonite modified by dimethyl, dehydrogenated
tallow, quaternary ammonium.