Polymerization of Acrylamide Initiated by Hydroxy Terminated Polybutadiene-ceric Ammonium Nitrate Redox System

Abstract

Amphiphilic copolymer of acrylamide (AAm) and butadiene was synthesized by radical initiation using the hydroxy terminated polybutadiene (HTPB) and ceric ammonium nitrate (CAN) macroredox initiator in heterogenous medium in the presence of nitric acid at 35°C in air. The resulting product was characterized by IR, NMR, viscosity and swelling measurements. Imidization of some AAm units was inferred from NMR spectroscopy and swelling measurement. The product adsorbed Ni(II) and Fe(II) ions from aqueous solution and selectively released Ni(II) only. The release pattern for hydrophilic dye was similar to the usual fractional release behavior of drug release observed for hydrogel systems.

Keywords:

• Amphiphilic copolymer
• polybutadiene-polyacrylamide
• imidization
• macroredox polymerization
• dye release