DOI QR코드

DOI QR Code

Liquid Crystal Alignment Effects on the Homopolymerized N-(phenyl) maleimide Photopolymer

N-(phenyl)maleimide 단독 중합체 광폴리머를 이용한 액정 배향 효과

  • 황정연 (연세대학교 전기전자공학과) ;
  • 김준영 (성균관대학교 고분자공학과) ;
  • 이윤건 (연세대학교 전기전자공학과) ;
  • 서대식 (연세대학교 전기전자공학과) ;
  • 김태호 (성균관대학교 고분자공학과)
  • Published : 2002.05.01

Abstract

The photoalignment material PFCPMI, poly[4-(fluorocinnamate)phenylmaleimide], was synthesized and the nematic liquid crystal(NLC) aligning capabilities on the photopolymer surface. The NLC pretilt angle geneated by non-UV filter method on the PFCPMI surface was higher than that of the UV filter method. A good LC alignment by non-UV filter method was observed at $150^{\circ}C$ of annealing temperature. However, the alignment defect of the NLC by UV filter method was measured above $150^{\circ}C$ of annealing temperatue. Consequently, the high pretilt angle and the good LC alignment in NLC using non-UV filter method can be acheived.

Keywords

References

  1. Nature v.381 Optical patterning of multi-domain liquid crystal display with wide viewing angles M. Schadt;H. Seiberle;A. Schuster https://doi.org/10.1038/381212a0
  2. Jpn. J. Appl. Phys. v.32 Surface-induced parallel alignment of liquid crystals by linearly polarized photopolymers M. Schadt;K. Schmitt;V. Kozinkov;V. Chigrinov
  3. IEICE Trans. Electron v.E79-C no.8 Alignment control of liquid crystal molecules using photo-dimerization reaction of poly(vinyl cinnamate) Y. Iimura;S. Kobayashi;T. Hashimoto;T. Sugiyama;K. Katoh
  4. Macromolecules v.34 Tilt orientation of p-methoxyazobenzene side chain in liquid crystalline polymer films by irradiation with nonpolarized light M. Han;K. Ichimura https://doi.org/10.1021/ma0008239
  5. Macromolecules v.30 Photoreactivity of polymers with regioisomeric cinnamate side chains and their ability to regulate liquid crystal alignement K. Ichimura;Y. Akita;H. Akiyama;K. Kudo;Y. Hayshi https://doi.org/10.1021/ma961225q
  6. Trans. on KIEEME v.1 no.3 Liquid crystal alignment effects for the photo-aligned VA-LCD on the photo-polymer J.-Y. Hwang;D.-S. Seo;E.-J. Hahn;J.-H. Kim
  7. 전기전자재료학회논문지 v.14 no.8 수직 광폴리머를 이용한 VA-1/4π셀의 전기 광학 특성 황정연;서대식;김재형
  8. 전기전자재료학회논문지 v.15 no.3 3가지 종류의 치환기를 함유한 N-(phenyl)maleimide계 광폴리머 표면을 이용한 액정 배향 효과에 관한 연구 황정연;이윤건;서대식;김준영;김태호 https://doi.org/10.4313/JKEM.2002.15.3.264
  9. Mechanims of Photophysicial Processes and Photochemical Reactions in Polymers Jan F. Rabek