Rheological and thermal stability of novel weak gels based on sulfonated polyacrylamide/scleroglucan/chromium triacetate | Zendy

Alvand Ehsan | Zendy; Aalaie Jamal | Zendy; Hemmati Mahmood | Zendy; Sajjadian Vali Ahmad | Zendy

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Rheological and thermal stability of novel weak gels based on sulfonated polyacrylamide/scleroglucan/chromium triacetate

Author(s) -

Alvand Ehsan,

Aalaie Jamal,

Hemmati Mahmood,

Sajjadian Vali Ahmad

Publication year - 2017

Publication title -

polymer international

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.592

H-Index - 105

eISSN - 1097-0126

pISSN - 0959-8103

DOI - 10.1002/pi.5287

Subject(s) - polyacrylamide , rheology , dynamic mechanical analysis , thermal stability , materials science , electrolyte , viscosity , chemical engineering , polymer , rheometry , polymer chemistry , composite material , chemistry , electrode , engineering

The present study deals with weak gels based on sulfonated polyacrylamide (SPA)/scleroglucan (SC)/Cr 3+ with an exceptional thermal stability in electrolyte media. The rheological results showed that on increasing the SC concentration the shear viscosity and storage modulus of the SPA/SC/Cr 3+ system were increased and the dependence of the storage modulus on frequency became weaker. The yield stress of the SPA/SC/Cr 3+ system was higher than that of the corresponding SPA/SC system. The thermochemical stability increased with increasing relaxation time. The SPA/SC/Cr 3+ semi‐interpenetrating network exhibited the lowest viscosity loss in electrolyte media; therefore this system may be a potential candidate for enhanced oil recovery applications. © 2016 Society of Chemical Industry

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