Surface free energy of chosen polyimides and anchoring energy of 6CHBT on these surfaces

Jerzy Borycki; Maria Wilczek; Jerzy Kedzierski; Marek Andrzej Kojdecki

doi:10.1117/12.581211

1 September 2004 Surface free energy of chosen polyimides and anchoring energy of 6CHBT on these surfaces

Jerzy Borycki, Maria Wilczek, Jerzy Kedzierski, Marek Andrzej Kojdecki

Proceedings Volume 5565, XV Conference on Liquid Crystals; (2004) https://doi.org/10.1117/12.581211
Event: XV Conference on Liquid Crystals, 2003, Zakopane, Poland

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.

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Jerzy Borycki, Maria Wilczek, Jerzy Kedzierski, and Marek Andrzej Kojdecki "Surface free energy of chosen polyimides and anchoring energy of 6CHBT on these surfaces", Proc. SPIE 5565, XV Conference on Liquid Crystals, (1 September 2004); https://doi.org/10.1117/12.581211

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