Naslov
Worm–like micelles in water solutions of 1, 4 poly(1, 3 butadiene)-polyethilene oxide Diblock copolymer.

Autori
Arenas, Brisa ; Vincekovic, Marko ; Garza, Cristina ; Castillo, Rolando.

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Skup
XLIIL Winter Statistical Physics Meeting

Mjesto i datum
Guerrero, Meksiko; Taxco, Meksiko, 07.01.2014. - 10.01.2014

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
wormlike micelles; doblock copolymer; selforganisation

Sažetak
The rheological behavior of worm-like micelle solutions of typical surfactants is not followed by this system. The system steadily shear thins as shear rate increases reaching very low viscosity values at large shear rates ; there are not shear thickening peaks. In tixotropic loops, up-shear and down-shear curves can be superimposed ; the micellar solution does not present hysteresis. The viscoelastic spectra do not follow the Maxwell model at low and intermediate frequencies, which is atypical in a worm-like micellar solution. This uncommon behavior was explained as a consequence of the impediment of any micellar rearrangement, due to the extremely high hydrophobicity of the PB block.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA