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Coordination chemistry of calix[4]arene derivatives with lower rim functionalisation and their applications

“…The polymers 382-384 are not selective and show more or less the same extraction behaviour towards all metal cations. In a further paper, Yilmaz and co-workers synthesised some copolymers containing pendant calix [4]arene units with nitrile functionalities at the lower rim with 1,5-dibromopentane and bisphenol-A (385) [314] (Fig. 163).…”

Synthesis and binding properties of two polymeric thiacalix[4]arenes

“…The alkali and transition metal picrates were prepared according to our previous studies [45][46][47][48][49].…”

“…As the applications of chemically modified calixarenes/thiacalixarenes, several researchers have attempted to prepare various extractants and chelating adsorbents for alkali/transition metal cations and anions, either by transforming into oligomeric/polymeric structures or by immobilizing them onto solid support materials [33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51]. Although quite a number of reports exist on monomeric thiacalixarenes as mentioned above, those on the oligomeric/polymeric thiacalixarenes are very limited.…”

Adsorption of amino acid derivatives on calixarene carboxylic acid impregnated resins

“…Consequently, immobilization of calixarene derivatives on polymer matrix has been performed for the recovery of metal ions [17]. Crosslinking of calixarene to polymers has been carried out [18][19][20][21], as well as copolymerization of calixarene with other monomers [22][23][24][25]. Furthermore, impregnation of resins with calixarene derivatives is also one of the recognized methods for immobilization of calixarenes.…”