Article
  • Synthesis and Surface Anchoring Property of Partially Fluorinated Hockey Stick-Shaped Reactive Mesogens

  • Ui-Chan Nam# , Bo-Kyoung Park# , Tae-Joon Park, Sung-Il Yoon, Jae-Hoon Kim*, and E-Joon Choi†

  • Department of Polymer Science and Engineering, Kumoh National Institute of Technology, Gumi 39177, Korea
    *Department of Electronic Engineering, Hanyang University, Seoul 04761, Korea

  • 부분 불소화된 하키스틱형 반응성 메소겐의 합성 및 표면 배향 특성

  • 남의찬# · 박보경# · 박태준 · 윤성일 · 김재훈* · 최이준†

  • 금오공과대학교 고분자공학과, *한양대학교 전자공학과

  • Reproduction, stored in a retrieval system, or transmitted in any form of any part of this publication is permitted only by written permission from the Polymer Society of Korea.

References
  • 1. Fréedericksz, V.; Repiewa, A. Theoretisches und Experimentelles zur Frage nach der Natur der anisotropen Flüssigkeiten. Zeitschrift für Physik 1927, 42, 532-546.
  •  
  • 2. Myrvold, B. O.; Kondo, K. A Population Distribution Model for the Alignment of Nematic Liquid Crystals. Liq. Cryst. 1994, 17, 437-455.
  •  
  • 3. Arafune, R.; Sakamoto, K.; Ushioda, S.; Tanioka, S.; Murata, S. Noisy Le´vy Walk Analog of Two-Dimensional DNA Walks for Chromosomes of S. Cerevisiae. Phys. Rev. E. 1998, 58, 914-918.
  •  
  • 4. Seki, T.; Sakuragi, M.; Kawanishi, Y.; Tamaki, T.; Fukuda, T.; Ichimura, K.; Suzuki, Y. Command Surfaces of Langmuir-Blodgett Films. Photoregulations of Liquid Crystal Alignment by Molecularly Tailored Surface Azobenzene Layers. Langmuir 1993, 9, 211-218.
  •  
  • 5. Ichimura, K.; Suzuki, Y.; Seki, T.; Hosoki, A.; Aoki, K. Reversible Change in Alignment Mode of Nematic Liquid Crystals Regulated Photochemically by Command Surfaces Modified with an Azobenzene Monolayer. Langmuir, 1988,4, 1214-1216.
  •  
  • 6. Chaudhari, P.; Lacey, J. A.; Lien, S.A.; Speidell, J. L. Self-Ordering of Cell Configuration of Anodic Porous Alumina with Large-Size Pores in Phosphoric Acid Solution. Jpn. J. Appl. Phys. 1998, 37, L1340-L1342.
  •  
  • 7. Berreman, D. W. Solid Surface Shape and the Alignment of an Adjacent Nematic Liquid Crystal. Phys. Rev. Lett. 1972, 28, 1683-1686.
  •  
  • 8. Zhang, B.; Lee, F. K.; Tsui, O. K. C.; Sheng, P. Liquid Crystal Orientation Transition on Microtextured Substrates. Appl. Phys. Lett. 2003, 91, 215501.
  •  
  • 9. Lee, F. K.; Zhang, B.; Sheng, P.; Kwok, H. S.; Tsui, O. K. C. Continuous Liquid Crystal Pretilt Control through Textured Substrates. Appl. Phys. Lett. 2004, 85, 5556-5558.
  •  
  • 10. Oka, S.; Mitsumoto, T.; Kimura, M.; Akahane, T. Relationship between Surface Order and Surface Azimuthal Anchoring Strength of Nematic Liquid Crystals. Phys. Rev. E 2004, 69, 061711.
  •  
  • 11. Kim, J.-H.; Rosenbalatt, C. Rubbing Strength Dependence of Surface Interaction Potential and Surface-Induced Order above the Nematic–Isotropic Transition. J. Appl. Phys. 1998, 84, 6027-6033.
  •  
  • 12. Jérôme, B. Surface Effects and Anchoring in Liquid Crystals. Rep. Prog. Phys. 1991, 54, 391-451.
  •  
  • 13. Boamfa, M. I.; Kim, M. W.; Maan, J. C.; Rasing, Th. Observation of Surface and Bulk Phase Transitions in Nematic Liquid Crystals. Nature 2003, 421, 149-152.
  •  
  • 14. Tong, F.; Chen, S.; Chen, Z.; Lu, X.; Lu, Q. Mesogen-co-polymerized Transparent Polyimide as a Liquid-Crystal Alignment Layer with Enhanced Anchoring Energy. RSC Adv. 2018, 8, 11119-11126.
  •  
  • 15. Lee, M.; Bae, J. W.; Kim, A.; Yun, H. S.; Song, K. Alignments of Reactive Mesogen Using Rubbed Glass Substrates. Polym. Korea 2015, 39, 174-179.
  •  
  • 16. Ahn, H. J.; Lee, J. J.; Ahn, J. S.; Park, K. C.; Noh, J. G.; Yoo, D. Y.; Paek, S. H. Analysis of Properties of Rubbed Polyimide Alignment Layer and Rubbing Effect of Various Rubbing Cloths for LCD Fabrication . Polym. Korea 2011, 35, 385-389.
  •  
  • 17. Yaroshchuk, O.; Kyrychenko, V.; Tao, D.; Chigrinov, V.; Kwok, H. S.; Hasebe, H.; Takatsu, H. Stabilization of Liquid Crystal Photoaligning Layers by Reactive Mesogens. Appl. Phys. Lett. 2009, 95, 021902.
  •  
  • 18. Komitov, L. Nano-Engineering of the Anchoring of Liquid Crystals on Solid Surfaces. Thin Solid Films. 2008, 516, 2639-2644.
  •  
  • 19. Nie, X.; Lu, R.; Xianyu, H.; Wu, T. X.; Wu, S.-T. Anchoring Energy and Cell Gap Effects on Liquid Crystal Response Time. J. Appl. Phys. 2007, 101, 103110.
  •  
  • 20. Kim, I. H.; Kim, W. S.; Ha, K. Mechanism of Orientation of Liquid Crystal Molecules for Polarized UV-exposed Polyimide Alignment Layers. Polym. Korea 2002, 26, 209-217.
  •  
  • 21. Lee, K.-W.; Paek, S.-H.; Lien, A.; Durning, C.; Fukuro, H. Microscopic Molecular Reorientation of Alignment Layer Polymer Surfaces Induced by Rubbing and Its Effects on LC Pretilt Angles. Macromolecules 1996, 29, 8894-8899.
  •  
  • 22. Rapini, A.; Papoular, M. Distorsion d'une Lamelle Nématique sous Champ Magnétique Conditions D'ancrage aux Parois. J. Phys. Colloq. 1969, 30, C4-54-C4-56.
  •  
  • 23. Broer, D. On the History of Reactive Mesogens: Interview with Dirk J. Broer. Adv. Mater. 2020, 32, 1905144.
  •  
  • 24. Kim, Y.; Lee, Y.-J.; Baek, J.-H., Yu, C.-J.; Kim, J.-H. Dependence of Planar Alignment Layer upon Enhancement of Azimuthal Anchoring Energy by Reactive Mesogens. Jpn. J. Appl. Phys. 2021, 54, 011701.
  •  
  • 25. Jo, S. I.; Kim, J.-H.; Yu, C.-J. Multi-Domain Alignment of Liquid Crystal Using a Stamp of Anisotropic Morphology Fabricated by a Directional Polymerization of Reactive Mesogen. Mol. Cryst. Liq. Cryst. 2015, 613, 190-196.
  •  
  • 26. Lee, J. M.; Kim, J. H.; Kim, H. J.; Lim, Y. J.; Kundu, S.; Kim, M. S.; Lee, M.-H.; Lee, J. H.; Lee, G.-D.; Lee, S. H. Achieving a Robust Homogenously Aligned Liquid Crystal Layer with Reactive Mesogen for In-plane Switching Liquid Crystal Displays. Liq. Cryst. 2017, 44, 1194-1200.
  •  
  • 27. Kim, Y.; Lee, M.; Wang, H. S.; Song, K. Optical Retardation of UV-curable Reactive Mesogen with Vertical Alignment. Opt. Mater. Express 2017, 7, 4225-4232.
  •  
  • 28. Lee, H.-G.; Kim, S.-Y.; Choi, E-J. Bending Behaviors in Photoresponsive Liquid Crystalline Polymer Films Derived from a Hockey Stick-Shaped Reactive Mesogen. Macromol. Res. 2022, 30, 799-810.
  •  
  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2022 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2023; 47(3): 309-319

    Published online May 25, 2023

  • 10.7317/pk.2023.47.3.309
  • Received on Dec 13, 2022
  • Revised on Feb 1, 2023
  • Accepted on Feb 7, 2023

Correspondence to

  • E-Joon Choi

  • Department of Polymer Science and Engineering, Kumoh National Institute of Technology, Gumi 39177, Korea

  • E-mail: ejchoi@kumoh.ac.kr