Production of materials with sorption-active cyclam layer on polyvinyl chloride surface encapsulating cellulose matrix fibers

Synthesis and sorption properties of porous layers of cyclames on a modified polyvinyl chloride surface

“…Our deter mination was performed according to the methodol ogy in [2,3]. The samples were kept in an exsiccator over the appropriate reagent before reaching a con stant mass.…”

“…There are steps characteristic of porous cyclame layers with cavities in the layer in the isotherm for AEC in the range of p/p S = 0.03-0.06, and in the isotherm for AAC in the range of p/p S = 0.03-0.04. The V SP and V ME values were calculated according to the method in [8], and the V V values for AEC and AAC were calculated from the value of benzene absorption at a step [1][2][3]. It was established that V SP = 0.055 cm 3 /g for AT, AEC, and AAC and V ME = V SP ; V V = 0.0017 (AEC) and 0.0028 (AAC) cm 3 /g; i.e., like the AT surface, the AEC and AAC surfaces consists almost entirely of mesopores.…”

“…AT 8 grade asbestos tissue (GOST 6102 94) with a magnesium hydrosilicate content of 94.7%, cleansed of mineral and organic contamination according to the method in [2,3] with a solution of sodium salts of the peptide derivatives of iminodiacetic acid and potassium salts of ethylenediaminetetraacetic and nitrilotriacetic acids at 80-90°C was used as the initial AT. During cleansing, organic and mineral contami nants are desorbed from the fibers.…”

“…(1) This reaction is analogous to the reaction with cel lulose [3], linking the coating with the substrate. This indicates that the synthesis of porous cyclame layers on the surface of the PVC capsules, coating asbestos fibers, is promising.…”

“…Ethanol and sodium acetate cyclame layers have also been syn thesized on the surfaces of cellulose fibers with PVC coating, and it has been shown that they are promising as multifunctional tissue sorbents [2][3][4]. The thick ness of the PVC coating linked to cellulose on cotton wool tissues is ~530-550 nm, and the effective thick ness of the cyclame layer is ~40-50 nm.…”