The structure of cationic amylopectin as determined via mobility data compared to model calculations

The structure of cationic amylopectin has been investigated by means of the electrokinetic sonic amplitude (ESA) technique. The obtained mobility data have been evaluated with model calculations. Static light-scattering data are also presented and compared with model calculations. It was found that cationic amylopectin has a heterogenous structure. The mobility data could roughly be modelled with a soft sphere. The light-scattering data are an intermediate between a linear chain and a homogenously branched polymer.