Journal
MOLECULAR PHYSICS
Volume 114, Issue 2, Pages 304-314Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/00268976.2015.1101497
Keywords
Self-assembly; heterogemini surfactant; interaction; dissipative particle dynamics
Funding
- National Natural Science Foundation of China [21406136, 21176152, 51271105]
- Shanghai Municipal Education Commission [14YZ015]
- Program for Innovative Research Team in University [IRT13078]
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Self-assembly behaviours of heterogemini surfactant in aqueous solution have been explored by means of dissipative particle dynamics simulation. Five kinds of heterogemini molecules are involved and a variety of novel morphologies have been obtained. Results based on detailed analyses show that head-tail and tail-water interactions play different roles in the formation of six kinds of self-assembly morphologies. The key factors are tail-water and head-tail repulsions separately for morphology with small (sphere) and relatively large scales (rod, planar grid, lamella and tunnels). Besides, the appearance of network in only one system can be regarded as a particular type of intermediate state. Coexistence of several sphere micelles in an amplified dissipative particle dynamics system gives us a better understanding of interactions inside the soft matter. Our simulation results can provide a theoretical guide to further research towards self-assembly behaviours of heterogemini surfactants and practical applications of these matters. [GRAPHICS]
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