Partition Systems for the Fractionation of Nitrocellulose with Respect to Molecular Weight

Many studies of the molecular weight distribution of high polymers which would be of considerable interest are at present impracticable because of the limitations and tediousness of conventional fractionation procedures, The recent success of adsorption and partition methods in the separation of closely related chemical species has directed our attention to the possibility of applying such methods to the fractionation of high polymers. In this communication we describe a partition system applicable to the fractionation of nitrocellulose with respect to molecular weight. Studies on adsorption systems are in progress and will be reported separately.