Synthesis of Water-Soluble Copolymers of -vinylpyrrolidone with -vinyldithiocarbamate as Multidentate Polymeric Chelation Systems and Their Complexes with Indium and Gallium.

Dithiocarbamate (DTC) derivatives of -vinylpyrrolidone--vinylamine (VP-VA) copolymers were synthesized via reaction between the copolymers and carbon disulfide in alkaline medium; molecular masses of the products were 12 and 29 kDa; the VP:VDTC ratios were 94:6 and 83:17 mol.%. Complexation between the obtained DTC derivatives and metal ions (indium and gallium) was investigated.