The molecular weight of a sodium lignosulfonate in dimethylsulfoxide and in aqueous 0.1Msodium chlorine

摘要

AbstractValues of the weight‐average molecular weight for a high molecular weight lignosulfonate were found to be nearly equal in aqueous sodium chloride and in DMSO. Prolonged storage in DMSO produced no perceptible change in molecular weight. The results indicated that the lignosulfonate macromolecule was a truly covalent species and was not an aggregate comprised of many low molecular weight units held together by association force