Mechanisms of liquid crystal alignment on buffed polyimide surfaces

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

研究成果: Contribution to journalConference article査読

6 被引用数 (Scopus)

抄録

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.

本文言語英語
ページ(範囲)247-253
ページ数7
ジャーナルMaterials Research Society Symposium - Proceedings
345
出版ステータス出版済み - 12 1 1994
外部発表はい
イベントProceedings of the 1994 MRS Spring Meeting - San Francisco, CA, USA
継続期間: 4 4 19944 8 1994

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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