TY  - JOUR
A1  - Raju, Rajarshi Roy
A1  - Kosmella, Sabine
A1  - Friberg, Stig E.
A1  - Koetz, Joachim
T1  - Pickering Janus emulsions and polyelectrolyte complex-stabilized Janus gels
JF  - Colloids and surfaces : an international journal devoted to the principles and applications of colloid and interface science ; A, Physicochemical and engineering aspects
N2  - Janus emulsions, containing olive oil (OO) and silicone oil (SiO), were formed in presence of polyelectrolyte complex particles, i.e., gelatin-sodium polyacrylate (NaPAA) complexes. The diameter of completely engulfed Janus droplets can be tuned between 50 and 200 mu m by varying the gelatin/NaPAA complex particle size between 200 and 400 nm. The gelatin/NaPAA complex particles adsorbed at the olive oil interface decrease the interfacial tension and stabilize the resulting completely engulfed Pickering Janus emulsions. Long-term stable Janus gels can be synthesized in presence of gelatin/sodium carboxymethylcellulose (NaCMC) mixtures. In that case Coulombic forces are of relevance with regard to the stabilization of the Janus droplets embedded in a gelatin/NaCMC gel matrix. Janus gels show elastic reological behavior and thixotropic properties.
KW  - Pickering Janus emulsions
KW  - Janus gels
KW  - Interfacial tension
KW  - Ring tensiometry
KW  - Gelatin-NaCMC
KW  - Gelatin-NaPAA composites
Y1  - 2017
U6  - https://doi.org/10.1016/j.colsurfa.2017.08.022
SN  - 0927-7757
SN  - 1873-4359
VL  - 533
SP  - 241
EP  - 248
PB  - Elsevier
CY  - Amsterdam
ER  -