Rheologycal properties of sodium carboxymethylcellulose in the presence of electrolyte and mixed micelle of surfactants | Zendy

Verica Sovilj | Zendy; P. Dokić | Zendy; Lidija Petrović | Zendy

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Rheologycal properties of sodium carboxymethylcellulose in the presence of electrolyte and mixed micelle of surfactants

Author(s) -

Verica Sovilj,

P. Dokić,

Lidija Petrović

Publication year - 2003

Publication title -

acta periodica technologica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.134

H-Index - 15

eISSN - 2406-095X

pISSN - 1450-7188

DOI - 10.2298/apt0334071s

Subject(s) - pulmonary surfactant , polyelectrolyte , thixotropy , rheology , chemistry , electrolyte , micelle , sodium carboxymethylcellulose , chemical engineering , critical micelle concentration , ionic strength , viscosity , cationic polymerization , sodium , polymer , polymer chemistry , aqueous solution , materials science , organic chemistry , composite material , electrode , engineering , biochemistry

One of the most significant aspects of polymer-surfactant interaction, from the practical point of view, is that of rheology control and viscosity enhancement. In the oppositely charged polyelectrolyte-surfactant system strong ionic interaction often leads to precipitation of the formed complex yielding serious problems. In this paper the interaction between anionic polyelectrolyte - sodium carboxymethylcellulose (NaCMC) and cationic surfactant - cethyltrimethylammonium bromide (CTMAB) has been investigated by rheological measurements. Addition of electrolyte NaBr and nonionic surfactant - Tween 80 reduced the binding strength, prevented the precipitation of the complex and increased the viscosity of the system. It was found that rheological properties are strong influenced by NaCMC-CTMAB interaction and the system exhibits either pseudoplastic or thixotropic or rheopectic behavior according to the intensity of interaction

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