Method for producing hydrogel, heavy metal ion adsorbent, dye adsorbent, microorganism carrier and enzyme immobilizing carrier

摘要

A process for producing an aqueous gel easily without the necessity for complicated operations and large-scale equipment, which comprises bringing an aqueous solution of a polymer having repeating units comprising cationic groups represented by general formulae (1) and/or (2) into contact with an aqueous alkali solution to cause deposition of an aqueous gel, (wherein R1 and R2 represent each hydrogen or methyl; and X represents an anion). The obtained gel is formed into a heavy-metal ion adsorbent, pigment adsorbent, microbe carrier, and carrier for enzyme immobilization.