Temperature dependent rheology of surfactant-hydroxypropyl cellulose solutions.

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The rheology of 1-8% hydroxypropyl cellulose (HPC) solutions has been studied in the temperature range of 20-45 degrees Celsius. The results showed that the relative viscosity at each HPC concentration decreases with increasing temperature. The relative viscosity decreases drastically at about 43 degrees Celsius due to a phase transition. The influence of anionic surfactant, sodium dodecylsulfate (SDS), induced gelation of a 2% HPC solution. The HPC solutions gelled at surfactant SDS concentrations ranging from 0.4 to 1.0 critical micelle concentration (CMC). The gelation of the HPC/SDS hydrogel is explained in the surfactant SDD - bridged HPC linear polymer chains. The ... continued below

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Snively, C. Todd December 2002.

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  • Snively, C. Todd

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The rheology of 1-8% hydroxypropyl cellulose (HPC) solutions has been studied in the temperature range of 20-45 degrees Celsius. The results showed that the relative viscosity at each HPC concentration decreases with increasing temperature. The relative viscosity decreases drastically at about 43 degrees Celsius due to a phase transition. The influence of anionic surfactant, sodium dodecylsulfate (SDS), induced gelation of a 2% HPC solution. The HPC solutions gelled at surfactant SDS concentrations ranging from 0.4 to 1.0 critical micelle concentration (CMC). The gelation of the HPC/SDS hydrogel is explained in the surfactant SDD - bridged HPC linear polymer chains. The complex viscosity - concentration profile was determined below the CMC of the SDS - water pair. The peak itself was a function of frequency indicating the presence of two relaxation times within the gelled network.

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UNT Student Graduate Works

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  • December 2002

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  • Sept. 26, 2007, 2:58 a.m.

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  • March 24, 2016, 4:25 p.m.

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Snively, C. Todd. Temperature dependent rheology of surfactant-hydroxypropyl cellulose solutions., thesis, December 2002; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc3312/: accessed October 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .