Poly(vinylsaccharide)s, 7 New surfactant polymers based on carbohydrates

New amphiphilic poly(vinylsaccharide)s (poly( 7 ) and poly( 8 )) were synthesized. Various alkylamino substituted mono- and disaccharides 3 and 5 were obtained by reductive amination of reducing mono- and disaccharides with alkylamines. The reaction of these monofunctionalized sugar derivates with 2-isocyanatoethyl methacrylate ( 2 ) leads to well-defined monomers ( 7 and 8 ) of the urea type. The monomers were polymerized in aqueous solution to high-molecular-weight polymers, using the redox initiator system (NH₄)₂S₂O₈/Na₂S₂O₅. The influence of structural variations by changing the hydrophilic sugar moiety or the lipophilic alkyl part was studied by viscometry, light scattering and measurements of the surface tension.