Adsorption of polymer mixtures from solutions on solids

Dependence of the Adsorption of Polymer Mixtures from Solution on the Amount of an Adsorbent

“…Studying adsorption from semidilute solutions of polymer mixtures (1,9) has shown that the degree of adsorption and the shape of the isotherm change markedly depending on A/V . In such a solution at a concentration near the critical overlapping concentration the formation of macromolecular aggregates occurs and these aggregates may also transit onto the adsorbent surface.…”

Fourier transform infrared-photoacoustic spectroscopy of poly (N-butyl methacrylate) adsorbed from solution on alumina

“…This typical behavior has been observed in the pioneering work of Fontana and Thomas 9 and in the other studies conducted with SiO 2 2 and Al 2 O 3 . [3][4][5][6][7][8][9][10] In Figure 3(b), two new and relatively strong peaks are easily seen to appear at 1550 and 1610 cm Ϫ1 . These are assigned to be due to symmetric and assymmetric stretching bands of the adsorbed carbonyl groups.…”

“…It is interesting to note that although there are several studies investigating the adsorption of PnBMA from polymer mixtures PnBMA ϩ polystyrene 6 and PnBMA ϩ rubber, 7 no detailed work on the adsorption of pure PnBMA on silica or alumina has been reported so far.…”

Temperature Dependence of Adsorption of Polymer Mixtures from Solutions

“…Increasing temperature may lead to the growth of aggregate dimensions if the quality of the solvent worsens; in this case adsorption will grow as well (7). Earlier we thoroughly investigated the adsorption of some polymer pairs from semi-diluted solutions and discovered strong selectivity adsorption under adsorption conditions; the thickness of the adsorption layers formed by two polymers simultaneously were determined (9)(10)(11)(12). However, up to now there were published no data on the temperature effect on adsorption of polymer mixtures and on the selectivity of adsorption from mixtures as a function of temperature.…”