聚乙二醇-十二烷基硫酸钠水溶液的黏度特性研究

doi:10.13218/j.cnki.csdc.2017.10.001

Abstract

Abstract: Ubbelohde viscosimetry was applied to investigate the viscosity characteristics of nonionic polymer polyethylene glycol (PEG) associated by anionic surfactant sodium dodecylsulfate (SDS) in different ratios.Double critical concentrations of PEG-SDS were obtained by the change of SDS-dependent reduced specific viscosity.Electro-viscous effect as well as the related salt shielding effect similar to a real polyelectrolyte was observed by the change of PEG-dependent reduced specific viscosity in lower concentrations of associate.Polymer coil expansion was also found in the aqueous PEG-SDS solution.The above viscosity characteristics in the PEG-SDS system are attributed to the formation of “pseudo-polyelectrolyte” by the charged SDS bound micelles associating on the PEG chain similar with the PVP-SDS system.

Key words: sodium dodecylsulfate, polyethylene glycol, reduced specific viscosity, electro-viscous effect, coil expansion

CLC Number:

TQ423.11

WANG Wang-song, WU Ye-fan, FANG Yun, HU Xue-yi. Investigation on viscosity characteristics of aqueous polyethylene glycol-sodium dodecylsulfate solution[J].China Surfactant Detergent & Cosmetics, 2017, 47(10): 541-545.

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Investigation on viscosity characteristics of aqueous polyethylene glycol-sodium dodecylsulfate solution

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