The characteristic numbers of polymers Nc (number of statistical segments at the onset of excluded-volume behaviour) and N' c (number of statistical segments at the onset of complete excluded-volume behaviour) have been related to the quality of the solvent for many polymer-solvent systems. This relation has been established either by direct experimental determination (crossover points in the log[q] versus log M representation) or using Han's equation. Exponential equations are presented that give the relation between N~ or N'c and the quality of the solvent as expressed by the Mark-Houwink-Sakurada exponent.
Посилання на статтю:
Relation between the quality of the solvent and the number of statistical segments of a polymer at the onset of excluded-volume and complete excluded-volume behaviour / Anastasios Dondos // Polymer. – 1992. – Vol 33. – P. 4375-4378.