Dissertation > Excellent graduate degree dissertation topics show

The Studyof Liquid Crystalanchoring about Side-aliphatic Chain with One-dimensionalperiodic Model

Author: SongJingJing
Tutor: ZhangZhiDong
School: Hebei University of Technology
Course: Theoretical Physics
Keywords: Polymeric surface surface anchoring director distribution pretilt angle
CLC: O753.2
Type: Master's thesis
Year: 2012
Downloads: 4
Quote: 0
Read: Download Dissertation

Abstract


This paper according to the polymer side-aliphatic chains on the influence of liquid crystalmolecules arrangement, and proposed a simplified model of the nano-structured polymericsurface. This model was characterized by a one-dimensional periodic stripe patterned surfacewith alternate planar and homeotropic anchoring. We investigate the effect of both the couplingof nematic liquid crystals with alignment layer polymers and the coupling of the polymers withthe substrate surface, on the anchoring of nematic liquid crystals at such a surface, using theextended anisotropic surface energy form proposed by Alexe-Ionescu et al and the Fourier seriessolution about the directors distribution proposed by Atherton et al.In our theoretical treatment, we assume the equal anchoring strength of the two anchoringregions. Our results show that the coupling of the polymer with the surface will affect thedirector field of the nematic, and reduce the relaxation distance as well as the total free energy ofthe system.

Related Dissertations

  1. Synthesis and Application Research of the Straight-chain and Side-chain Polyimide for Liquid Crystal Alignment,O753.2
  2. The Study on the Fabrication of Ferroelectric Liquid Crystal Devices with A Uniform and Stabilized Alignment,O753.2
  3. STUDY ON UV LIGHT CONTROLLED PHOTO-POLYMERIZATION AND THE ALIGNMENT EFFECT TO LIQUID CRYSTAL MOLECULES,O753.2
  4. The Study of Mixed Polyimide Alignment Layer for Cholesteric Bistable Liquid Crystal Displays,O753.2
  5. The Feasibility Study of Binary Flooding (PHAM/Surfactant) and Polymeric Surfactants Flooding on Gaotaizi Oil Layer in the Saertu Oilfield,P618.13
  6. Study on Improving Ink Jet Printing Quality of Uncoated Paper,TS761
  7. Study on Effect of Extracellular Polymer Substances and Their Surface Properties on the Flocculation and Settlement of Activated Sludge,X703
  8. Study on the Conditions of Liquid Crystal Alignment Technique for LCD,TN873.93
  9. The Study on Polymeric Surface-active Agent Flooding About Low Permeable Reservoirs in the Western of Xingerxi Pilot Area,TE357.4
  10. Based on molecular localized surface plasmon resonance of orientation and molecular photoisomerization efficiency control,TN25
  11. Liquid crystal light valve and its large-screen projection display,TN873.92
  12. Synthesis of Novel Polyimides with Variety Side Chains End Capped by Alkoxy and Study on Their Surface Morphology and Characters,TB383.2
  13. Effect of Polyimide Alignment Film Manufacturing Conditions on the Pretilt Angle of Liquid Crystal,TB383.2
  14. The Study of Stripe Domains in Super Twisted Nematic Liquid Crystal Displays,TN873.93
  15. Synthesis and Properties of Novel Low Viscosity Difluorooxymethylene-Bridged Liquid Crystals Compounds,O753.2
  16. Synthesis and Properties of Liquid Crystalline Monomers and Crosslinked Polymers Containing Menthyl Groups,O753.2
  17. Synthesis and Properties of New Chiral Liquid Crystalline Monomers and Network Polymers,O753.2
  18. Synthesis and Properties of Chiral Liquid Crystalline Monomers and Elastomers Containing Menthyl Groups,O753.2
  19. Synthesis and Characterization of Main Chain Supramolecular Liquid Crystals Through Intermolecular Hydrogen-bonding,O753.2
  20. Study on Preparation and Optical Properties of Color Liquid Crystalline Polymers Film,O753.2
  21. Synthesis and Characterization of Several Liquid Crystal Monomers and Chiral Liquid Crystalline Polymers,O753.2

CLC: > Mathematical sciences and chemical > Crystallography > Amorphous and class crystalline > Class crystalline > Liquid crystal
© 2012 www.DissertationTopic.Net  Mobile