Preprint Article Version 1 This version is not peer-reviewed

In Situ SAXS Measurement and Molecular Dynamics Simulation of Magnetic Alignment of Hexagonal LLC Nanostructures

Version 1 : Received: 5 October 2018 / Approved: 5 October 2018 / Online: 5 October 2018 (16:33:35 CEST)

A peer-reviewed article of this Preprint also exists.

Cong, W.; Gao, W.; Garvey, C.J.; Dumée, L.F.; Zhang, J.; Kent, B.; Wang, G.; She, F.; Kong, L. In Situ SAXS Measurement and Molecular Dynamics Simulation of Magnetic Alignment of Hexagonal LLC Nanostructures. Membranes 2018, 8, 123. Cong, W.; Gao, W.; Garvey, C.J.; Dumée, L.F.; Zhang, J.; Kent, B.; Wang, G.; She, F.; Kong, L. In Situ SAXS Measurement and Molecular Dynamics Simulation of Magnetic Alignment of Hexagonal LLC Nanostructures. Membranes 2018, 8, 123.

Journal reference: Membranes 2018, 8, 123
DOI: 10.3390/membranes8040123

Abstract

The alignment of nanostructures in materials such as lyotropic liquid crystals (LLCs) templated materials has the potential to signicantly improve their performances. However, accurately characterising and quantifying the alignement of such fine structures remains very challenging. In situ small angle X-ray scattering (SAXS) and molecular dynamics were employed for the first time to understand the hexagonal LLC alignment process with magnetic nanoparticles under a magnetic field. The enhanced alignment has been illustrated from the distribution of azimuthal intensity in the samples exposed to magnetic field. Molecular dynamics simulations reveal the relationship between the imposed force of the magenetic nanoparticles under magnetic field and the force transferred to the LLC cylinders which leads to the LLC alignment. The combinational study with experimental measurement and computational simulation will enable the development and control of nanostructures in novel materials for various applications.

Subject Areas

Alignment, Magnetic field, Hexagonal, Lyotropic liquid crystals, Nanofiltration, in situ small angle X-ray scattering (SAXS)

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