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The effect of additives, solvent type, and polymer concentration on macromolecule dimensions
Author(s) -
Wood Hal,
Sourirajan S.
Publication year - 1991
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.1991.070430120
Subject(s) - macromolecule , polymer , solvent , volume (thermodynamics) , materials science , excluded volume , polymer solution , molecule , polymer chemistry , thermodynamics , chemistry , chemical engineering , organic chemistry , physics , composite material , biochemistry , engineering
Abstract An equation is derived to estimate the hydrodynamic volume occupied by a typical linear polymer molecule, knowing only the polymer molecular weight and concentration of polymer in the solution. This equation may be applied to solutions above a minimum polymer concentration. Accuracy of the equation is determined by comparing it to an established method of calculating macromolecule dimensions. Above dilute solution conditions, the volume pervaded by a macromolecule is affected mainly by the polymer molecular weight and concentration of polymer in the solution. Chain dimensions are generally unaffected by the type of polymer, solvent, or additive in the solution.