Mechanisms of liquid crystal alignment on buffed polyimide surfaces

Hirotsugu Kikuchi, J. A. Logan, Do Y. Yoon

研究成果: ジャーナルへの寄稿会議記事査読

7 被引用数 (Scopus)


The surfaces of poly(amic acid) and cured polyimide films, subjected to different buffing and cure profiles, have been examined by atomic force microscopy (AFM). The ability of these buffed polymer surfaces to align nematic and chiral smectic C liquid crystals were also investigated. These studies show that the presence of microgrooves on buffed polymer surfaces are not necessary for alignment of liquid crystals. Rather, it is concluded that the liquid crystal alignment is mainly caused by the anisotropic intermolecular interactions between liquid crystal molecules and the polymer chains oriented by buffing. For the alignment of smectics, both the degree of order and mechanical properties of polyimide films are found to be important factors.

ジャーナルMaterials Research Society Symposium - Proceedings
出版ステータス出版済み - 1994
イベントProceedings of the 1994 MRS Spring Meeting - San Francisco, CA, USA
継続期間: 4月 4 19944月 8 1994

!!!All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学


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