A note on the viscosity of dilute solutions of polymer mixtures

A Study of Blends of Amphiphilic Polymers in Solution

“…The Heller method was used to estimate the intrinsic viscosities. [13][14][15] Plots of reduced viscosity values against concentration were linear for all samples, with correlation coefficients of 0.99.…”

“…The following rules have been deduced from preceding articles: [13][14][15] (1) If k AB < 0.5, the intrinsic viscosity of polymer A in the ''pseudosolvent'' is a decreasing function of [g B ]c B . If k AB > 0.5, the dependence exhibits a maximum.…”

“…[14] The method of pseudo-solvents has been applied to a variety of systems. [13][14][15] Most of them consisted of nonpolar or weakly polar polymers. No systematic study, however, has been devoted to amphiphilic polymer containing hydrophobic and hydrophilic groups, where complicated interactions can be expected at various concentrations.…”

“…[1][2][3][4][5][6][7][8][9][10][11][12] As most of them are time consuming, a simple viscometric method has been proposed. [13][14][15] It is referred to as the method of ''polymeric solvents or pseudo-solvents.'' The intrinsic viscosity, [g A ] B , of polymer A is measured in mixed solvents consisting of a low-molecular weight solvent and polymer B in various concentrations, c B .…”

Viscosity Study on Interaction between Sequence-Ordered Methacrylic Acid Copolymer and Poly(4-vinylpyridine)

“…3 . 4 The kA 8 value reflects changes in molecular size of a polymer (A) due to the other polymer (B). For 1/3 and 2/3 pairs, the kA 8 values were determined as follows.…”