Dissipative particle dynamics studies on the interfacial tension of A/B homopolymer blends and the effect of Janus nanorods

2016 ◽  
Vol 133 (41) ◽  
Author(s):  
Chun Zhou ◽  
Shi-kai Luo ◽  
Yi Sun ◽  
Yang Zhou ◽  
Wen Qian
Keyword(s):  
Interfacial Tension ◽  
Dissipative Particle Dynamics ◽  
Particle Dynamics ◽  
Homopolymer Blends

scholarly journals Dissipative Particle Dynamics Study on Interfacial Properties of Symmetric Ternary Polymeric Blends

Polymers ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1516
Author(s):  
Dongmei Liu ◽  
Kai Gong ◽  
Ye Lin ◽  
Tao Liu ◽  
Yu Liu ◽  
...  
Keyword(s):  
Interfacial Tension ◽  
Chain Length ◽  
Triblock Copolymer ◽  
Diblock Copolymers ◽  
Triblock Copolymers ◽  
Dissipative Particle Dynamics ◽  
Interfacial Properties ◽  
Particle Dynamics ◽  
Polymeric Blends ◽  
Polymer Component

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.

Dissipative particle dynamics study on the interfaces in incompatible A∕B homopolymer blends and with their block copolymers

2005 ◽  
Vol 122 (18) ◽  
pp. 184907 ◽  
Author(s):  
Hu-Jun Qian ◽  
Zhong-Yuan Lu ◽  
Li-Jun Chen ◽  
Ze-Sheng Li ◽  
Chia-Chung Sun
Keyword(s):  
Block Copolymers ◽  
Dissipative Particle Dynamics ◽  
Particle Dynamics ◽  
Homopolymer Blends
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