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The molecular weight of a sodium lignosulfonate in dimethylsulfoxide and in aqueous 0.1 M sodium chlorine
Author(s) -
Yean W. Q.,
Goring D. A. I.
Publication year - 1970
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1970.070140421
Subject(s) - sodium , aqueous solution , chemistry , macromolecule , chlorine , covalent bond , polymer chemistry , organic chemistry , biochemistry
Values 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 forces.