Investigations of Interfacial Properties of Surfactants with Different Structures at the Oil/Water Interface Using Dissipative Particle Dynamics

2013 ◽  
Vol 34 (7) ◽  
pp. 1020-1028 ◽  
Author(s):  
Zhining Wang ◽  
Yiming Li ◽  
Yingyan Guo ◽  
Haixia Zhang
Soft Matter ◽  
2019 ◽  
Vol 15 (19) ◽  
pp. 3978-3986 ◽  
Author(s):  
Rustam A. Gumerov ◽  
Sergei A. Filippov ◽  
Walter Richtering ◽  
Andrij Pich ◽  
Igor I. Potemkin

Amphiphilic microgels adsorbed at an oil–water interface were studied by means of dissipative particle dynamics (DPD) simulations.


MRS Advances ◽  
2018 ◽  
Vol 3 (26) ◽  
pp. 1469-1474 ◽  
Author(s):  
Chandan K Choudhury ◽  
Olga Kuksenok

ABSTRACTUsing dissipative particle dynamics approach, we model phase separation in a ternary system encompassing cross-linked polyacrylamide (PAM) gel, oil and water. PAM gels are widely used in many applications, from food and cosmetic applications to enhanced oil recovery approaches. We show that the PAM nanogel adsorbs at the oil-water interface and spreads out over this interface for the case of a loosely cross-linked polymer network. Tailoring PAM behavior at the oil-water interfaces by controlling gel’s properties could allow one to alter the properties of oil-water emulsions.


Polymers ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1516
Author(s):  
Dongmei Liu ◽  
Kai Gong ◽  
Ye Lin ◽  
Tao Liu ◽  
Yu Liu ◽  
...  

We investigated the interfacial properties of symmetric ternary An/AmBm/Bn and An/Am/2BmAm/2/Bn polymeric blends by means of dissipative particle dynamics (DPD) simulations. We systematically analyzed the effects of composition, chain length, and concentration of the copolymers on the interfacial tensions, interfacial widths, and the structures of each polymer component in the blends. Our simulations show that: (i) the efficiency of the copolymers in reducing the interfacial tension is highly dependent on their compositions. The triblock copolymers are more effective in reducing the interfacial tension compared to that of the diblock copolymers at the same chain length and concentration; (ii) the interfacial tension of the blends increases with increases in the triblock copolymer chain length, which indicates that the triblock copolymers with a shorter chain length exhibit a better performance as the compatibilizers compared to that of their counterparts with longer chain lengths; and (iii) elevating the triblock copolymer concentration can promote copolymer enrichment at the center of the interface, which enlarges the width of the phase interfaces and reduces the interfacial tension. These findings illustrate the correlations between the efficiency of copolymer compatibilizers and their detailed molecular parameters.


2004 ◽  
Vol 5 (6) ◽  
pp. 2088-2093 ◽  
Author(s):  
V. Ducel ◽  
J. Richard ◽  
Y. Popineau ◽  
F. Boury

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