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《China Surfactant Detergent & Cosmetics》 2017-10
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Investigation on viscosity characteristics of aqueous polyethylene glycol-sodium dodecylsulfate solution

WANG Wang-song;WU Ye-fan;FANG Yun;HU Xue-yi;Key Laboratory of Synthetic and Biological Colloids,Ministry of Education,School of Chemical & Material Engineering,Jiangnan University;  
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.
【Fund】: 国家重点研发计划资助项目(2017YFB0308904)
【CateGory Index】: O647.2
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