Sulfonic Cation Exchangers Based on Immobilized cis-Calix[4]resorcinolarenes

摘要

New sulfonic cation exchangers based on immobilized calix[4]resorcinolarenes were prepared. Their ion-exchange properties toward Na~+, Cu~(2+), [Pd(NH_3)_4]~(2+), In~(3+), and Sn~(4+) ions were studied in a wide pH range, and their chemical stability was examined.