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Proceedings Paper

Surface free energy of chosen polyimides and anchoring energy of 6CHBT on these surfaces
Author(s): Jerzy Borycki; Maria Wilczek; Jerzy Kedzierski; Marek Andrzej Kojdecki
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Paper Abstract

Poly(amic acids) were prepared from chosen aromatic dianhydrides and diamines in dimethylformamide. The glass or the indium tin oxide (ITO)-glass plates were spin-coated with the poly(amic acids) solutions and dried. A thermal imidization process was then carried out. The polar anchoring energy coefficient of 6CHBT molecules on polyimide and poly(amide imides) surfaces was determined by wedge cell method for. The surface free energies and its components were found from van Oss, Fowkes and Owens equations. It was shown that wettability of polymer layers with the 6CHBT and PCB liquid crystals depend on the imidization temperature. The worst wettability was observed for polyimide layers prepared at 250°C, whereas the best for baked at 350°C.

Paper Details

Date Published: 1 September 2004
PDF: 5 pages
Proc. SPIE 5565, XV Conference on Liquid Crystals, (1 September 2004); doi: 10.1117/12.581211
Show Author Affiliations
Jerzy Borycki, Radom Technical Univ. (Poland)
Maria Wilczek, Radom Technical Univ. (Poland)
Jerzy Kedzierski, Military Univ. of Technology (Poland)
Marek Andrzej Kojdecki, Military Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 5565:
XV Conference on Liquid Crystals
Jozef Zmija, Editor(s)

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