Thermodynamics of interlamellar complexes. Part 1.—Hydrocarbons in methylammonium montmorillonites

Adsorption of glycine and its di-, tri-, and tetra-peptides by montmorillonite

“…This is a severe restriction to place on the use of the equation since in such systems it is probable that there would be a high degree of orientation. Barrer and Kelsey 25 have discussed the problem of the application of thermodynamic functions to clay adsorption systems and have concluded that at least qualitatively correct interpretations of prominent physical aspects should be obtained. For their particular two-component systems, of hydrocarbon adsorption by alkyl ammonium montmorillonites, no other procedure could be used with comparable qualitative success.…”

Immersion Microcalorimetry and13C CP/MAS NMR Study of the Structure of Organoclays

“…Depending of the number of carbon atoms, the alkyl anol immersion calorimetry. chains arrange themselves parallel to the sheets as a monolayer or a bilayer (4,5). When there are more than 18 carbon…”

Comparison of tetrachloromethane sorption to an alkylammonium-clay and an alkyldiammonium-clay

“…The resulting organic cation substituted clay is called an "organoclay". In the 1950s and 1960s, it was shown that the sorption of vapors of nonionic organic liquids to organoclays was substantially greater than sorption to Naor Ca-clays (9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19), and these results have been summarized elsewhere (8,20). It was determined that the intercalated organic cations act as "props" that hold apart the silicate layers, allowing nonionic organic vapors to be intercalated and sorbed.…”