Polymers with pendent functional groups: VII. Polysaccharide derivatives containing viologen groups

The paper presents the synthesis of new polysaccharide derivatives containing viologen groups, by reaction of chloroacetylated crosslinked dextran microparticles with dipyridyl compounds as: 4,4′ dipyridyl, N-n-octyldipyridinium chloride and N-benzyldipyridinium chloride. The influence of the reaction conditions on the substitution degree with dipyridyl groups was discussed and a reaction mechanism was proposed. Some preliminary studies concerning antimicrobial activity of the polymeric dipyridyl compounds were also reported.