Liquid crystal transitions induced by spherical particles in anisotropic polymer brushes: molecular dynamics simulation
Darinskii, A. A., Tupitsyna, A. I., Allen, M. P. and Emri, I.. (2007) Liquid crystal transitions induced by spherical particles in anisotropic polymer brushes: molecular dynamics simulation. Polymer Science Series A, Vol.49 (No.8). pp. 944-959. ISSN 0965-545XFull text not available from this repository.
Official URL: http://dx.doi.org/10.1134/S0965545X07080123
A change in the structure of a polymer brush formed by chains composed of anisotropic monomers brought about by filling the volume of the system with free spherical particles was studied by means of molecular dynamics simulation. Microphase separation takes place at a certain concentration of spherical particles inside the brush. A microphase that contains a small amount of isotropic particles and is characterized by a high density and high ordering of the monomers is formed near the wall. A disordered microphase with a low monomer density and a high concentration of spherical particles is located at the periphery of the brush. The microphases are separated from one another by a distinct boundary. As the concentration of isotropic particles further increases, the ordered microphase expands until the entire volume of the brush becomes occupied. It was also found that the brush in the ordered state forms different LC structures, namely, smectic or nematic entities at relatively low concentrations or at higher concentrations of spheres, respectively.
|Item Type:||Journal Article|
|Subjects:||Q Science > QD Chemistry|
|Divisions:||Faculty of Science > Physics|
|Journal or Publication Title:||Polymer Science Series A|
|Official Date:||August 2007|
|Number of Pages:||16|
|Page Range:||pp. 944-959|
|Access rights to Published version:||Restricted or Subscription Access|
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