Cu(I) and Zn(II) chelations on polymer beads modified by attachment of a bipyridyl-calixarene-based chelate

Calixarene-engineered surfaces and separation science

“…In a method proposed by de Gaetano et al [52], a calixarene derivative having p-aminoethyl-phenoxypropyl and 6-methylene-[6 0 -methyl-2,2 0 -bipyridine]yl groups was immobilized to Wang benzaldehyde resin over an iminebond formation mechanism (Fig. 4).…”

“…For this Fig. 4 Immobilization of calixarenes to two different supports a immobilization of a calix [4]arene derivative with paminoethyl-phenoxypropyl and 6-methylene-[6 0 -methyl-2,2 0 -bipyridine]yl groups to Wang resin over imine-bond formation mechanism [52], b immobilization of an acyl fluoride derivative of calixarene to magnetoferritin [55] reason, separation scientists strive for developing efficient separation processes and/or improving the performance of the present ones. Sorption and chromatography are the two most widely used methods of separation, and both of them have very close relation with each other.…”

“…The same concept was used in sorption of dichromate [50]. In another application, a material obtained by immobilization of calixarene to a Wang benzaldehyde resin was used as a chelating material for Cu(I) and Zn(II) [52]. Heavy metal sorption to a thiacalixarene-immobilized chitosane-MNP composite material was studied, and the binding data was evaluated in terms of isotherm models [53].…”

Use of a bis(aminoalkyl)‐calix[4]arene derivative as cross‐linking agent to enhance functional and mechanical properties of a maleated polypropylene

“…Their insertion in polymers has been carried out by impregnation, grafting along polymer chains via one anchoring group or by direct polymerization involving at least two reactive groups. That was performed mainly in view of taking benefit of their rigidity, 32,33 their cavities for complexation/extraction of various guest molecules for water purification for example 34 or metal-ion separation, 35,36 their physicochemical, 37 or their biological properties. 38 The p-tert-butylcalixarene macrocyclic platform is composed of 4 p-tert-butyl phenol units, giving four possible conformations that depend on the relative orientation of the phenols with respect to the central main axis: cone, partial cone, 1,2-alternate and 1,3-alternate conformers, among which the conic one is favored by the hydrogen bonding between hydroxyl groups.…”

Applications of Nano-Baskets of Calixarenes in Chromatography

“…2) [8][9][10][11][12][13][14][15][16][17][18][19][20][21], transition metal ions (Fig. 3) [22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37], molecular compounds ( Fig. 3) and anions ( Fig.…”