ITP OpenIR  > SCI期刊论文
Li, Shen1; Wang, Yanting1
Percolation Phase Transition from Ionic Liquids to Ionic Liquid Crystals
AbstractDue to their complex molecular structures and interactions, phase behaviors of complex fluids are quite often difficult to be identified by common phase transition analysis methods. Percolation phase transition, on the other hand, only monitors the degree of connection among particles without strict geometric requirements such as translational or orientational order, and thus suitable for pinpointing phase transitions of complex fluids. As typical complex fluids, ionic liquids (ILs) exhibit phases beyond the description of simple liquid theories. In particular, with an intermediate cationic side-chain length, ILs can form the nanoscale segregated liquid (NSL) state, which will eventually transform into the ionic liquid crystal (ILC) structure when the side chains are adequately long. However, the microscopic mechanism of this transformation is still unclear. In this work, by means of coarse-grained molecular dynamics simulation, we show that, with increasing cationic side-chain length, some local pieces of non-polar domains are gradually formed by side chains aligned in parallel inside the NSL phase, before an abrupt percolation phase transition happens when the system transforms into the ILC phase. This work not only identifies that the NSL to ILC phase transition is a critical phenomenon, but also demonstrates the importance of percolation theory to complex fluids.
Cooperation Status国内
Subject AreaScience & Technology - Other Topics
MOST Discipline CatalogueMultidisciplinary Sciences
Indexed BySCIE
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, 55 East Zhongguancun Rd,POB 2735, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Li, Shen,Wang, Yanting. Percolation Phase Transition from Ionic Liquids to Ionic Liquid Crystals[J]. SCIENTIFIC REPORTS,2019,9:13169.
APA Li, Shen,&Wang, Yanting.(2019).Percolation Phase Transition from Ionic Liquids to Ionic Liquid Crystals.SCIENTIFIC REPORTS,9,13169.
MLA Li, Shen,et al."Percolation Phase Transition from Ionic Liquids to Ionic Liquid Crystals".SCIENTIFIC REPORTS 9(2019):13169.
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