Adsorption of Amphiphilic Dimers at Surfaces

A new theoretical approach to multilayer adsorption of polyatomics

“…13(b)]/nonporous silica [3], were discussed in terms of dimers isotherm equations for different connectivities [Eqs. (23), ( 27)-( 29)]. Experimental data are reported in amount adsorbed, v [cm 3 g À1 (STP)], as a function of relative pressure, p/p 0 .…”

“…This effect, socalled multisite occupancy adsorption, introduces a high degree of difficulty in the adsorption theories. Consequently, a few elaborated analytical isotherms [10,[18][19][20][21][22][23][24][25][26][27][28][29] and numerical studies [30][31][32][33][34][35][36][37] have been derived for describing the peculiarities of polyatomics adsorption.…”

Theory of Multilayer Adsorption with Correct Critical Behavior

“…Ono−Kondo LDFT and its recent extensions use relatively simple mathematics (finite-difference equations) but include the essential physics. It is able to predict phase transitions and self-assembly not only for simple molecules but also for systems with directional interactions and for multimers. − However, classical Ono−Kondo theory has a fundamental problemit is a mean-field theory, and critical points and phase behavior near the critical point are described incorrectly.…”