한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
권호 표지

LC Alignment Behaviors at Rubbed Films of Brush Polyimides;Perpendicular LC Alignment versus Parallel LC Alignment

  • Lee, Taek-Joon (Department of Chemistry, Division of Molecular and Life Sciences, BK21 Program, Center for Integrated Molecular Systems, Polymer Research Institute, Department of Materials Science and Engineering, Pohang University of Science & Technology) ;
  • Hahm, Seok-Gyu (Department of Chemistry, Division of Molecular and Life Sciences, BK21 Program, Center for Integrated Molecular Systems, Polymer Research Institute, Department of Materials Science and Engineering, Pohang University of Science & Technology) ;
  • Lee, Seung-Woo (Department of Chemistry, Division of Molecular and Life Sciences, BK21 Program, Center for Integrated Molecular Systems, Polymer Research Institute, Department of Materials Science and Engineering, Pohang University of Science & Technology) ;
  • Chae, Bok-Nam (Department of Chemistry, Division of Molecular and Life Sciences, BK21 Program, Center for Integrated Molecular Systems, Polymer Research Institute, Department of Materials Science and Engineering, Pohang University of Science & Technology) ;
  • Lee, Seong-June (Department of Chemistry, Division of Molecular and Life Sciences, BK21 Program, Center for Integrated Molecular Systems, Polymer Research Institute, Department of Materials Science and Engineering, Pohang University of Science & Technology) ;
  • Kim, Seung-Bin (Department of Chemistry, Division of Molecular and Life Sciences, BK21 Program, Center for Integrated Molecular Systems, Polymer Research Institute, Department of Materials Science and Engineering, Pohang University of Science & Technology) ;
  • Jung, Jin-Chul (Department of Chemistry, Division of Molecular and Life Sciences, BK21 Program, Center for Integrated Molecular Systems, Polymer Research Institute, Department of Materials Science and Engineering, Pohang University of Science & Technology) ;
  • Ree, Moon-Hor (Department of Chemistry, Division of Molecular and Life Sciences, BK21 Program, Center for Integrated Molecular Systems, Polymer Research Institute, Department of Materials Science and Engineering, Pohang University of Science & Technology)
  • Published : 2004.08.23
Download PDF
⟨ Previous Next ⟩

Abstract

Rubbed films of a series of poly(p-phenylene 3,6-bis(4-(n-alkyloxy)phenyloxy)pyromellitimide)s (Cn-PMDA-PDA PIs), which are well-defined brush PIs composed of two aromatic-aliphatic bristles per repeat unit of a fully rodlike backbone, were investigated in detail using atomic force microscopy (AFM), optical retardation analysis and linearly polarized infrared (IR) spectroscopy in order to elucidate their surface morphology and molecular orientation. The liquid crystal (LC) alignment behavior and the anchoring energy of LC molecules on the rubbed films were also determined.

Keywords