2001 Volume 58 Issue 9 Pages 448-452
In order to synthesize cationic water-soluble graft terpolymers, we copolymerized acrylamide (AM) and 2- (dimethylamino) ethyl methacrylate (DMAEMA) on cyclodextrin (CD) or dextrin (D). Grafting and intrinsic viscosity of synthesized graft terpolymers decreased with increasing DMAEMA feed. Moreover, D-graft- (AM-DMAEMA) graft terpolymers showed higher intrinsic viscosity than CD-graft- (AM-DMAEMA) graft terpolymers. The FT-IR spectra proposed that graft terpolymerization was initiated by abstraction of a hydrogen atom at C1 carbon atom in the glucopyranose ring. These cationic graft terpolymers had superior flocculation effect compared with AMDMAEMA copolymer contained as the branches.
