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Updated: Aug 23, 2026

Characteristics of Precipitation-formed Polyethylene Glycol Microgels Are Controlled by Molecular Weight of Reactants
Published on: December 23, 2013
Effects of surfactant micelles on viscosity and conductivity of poly(ethylene glycol) solutions
Shun-Cheng Wang1, Tzu-Chien Wei, Wun-Bin Chen
1Department of Chemical and Materials Engineering, National Central University, Jhongli City, Taiwan 320, Republic of China.
Abstract:
The neutral polymer-micelle interaction is investigated for various surfactants by viscometry and electrical conductometry. In order to exclude the well-known necklace scenario, we consider aqueous solutions of low molecular weight poly(ethylene glycol) (2-20)x10(3), whose radial size is comparable to or smaller than micelles. The single-tail surfactants consist of anionic, cationic, and nonionic head groups. It is found that the viscosity of the polymer solution may be increased several times by micelles if weak attraction between a polymer segment and a surfactant exists, epsilon
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