Scleroglucan solution properties

Biopolymers such as xanthan and scleroglucan exhibit many desirable properties 28,34,36) (i.e. temperature behavior and viscosity level),but they are not stable to microbial degradation [see ref. 8 in l ]. Cellulose in its water-soluble form, hydroxyethylcellulose (NEC), has good resistance to brine but the required concentration for a solution viscosity of 10 mPa s is too high. Poly(styrene-sulfonate) also has been investigated 33) [see ref. 14 in ], but its sensitivity to brine, its viscosity loss by aging, and the possibility of side-reactions limits its use in EOR. Polymers such as... 

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