Surface free energy of polyimide aligning layers

Jerzy Borycki; Malgorzata Okulska-Bozek

doi:10.1117/12.385696

12 May 2000 Surface free energy of polyimide aligning layers

Jerzy Borycki, Malgorzata Okulska-Bozek

Proceedings Volume 4147, Liquid Crystals: Chemistry, Physics, and Applications; (2000) https://doi.org/10.1117/12.385696
Event: XIII International Conference on Liquid Crystals: Chemistry, Physics, and Applications, 1999, Krynica Zdroj, Poland

Abstract

Polyimides from four selected dianhydrides and seven diamines were synthesized by two-step polycondensation method. During the first step 10% solutions of poly(amic acid)s in N,N-dimethylformamide and 1-methyl-2-pyrrolidinone were obtained. The thin polyimide layers on soda glass were prepared by thermal cyclodehydration. Contact angles of series of standard liquids for tested polyimide films were measured. The values of surface free energy and its components were calculated accordingly to Zisman, Owens et al. and van Oss equations. Some correlation between the surface properties and the chemical structure of polyimide aligning layers were presented.

Citation Download Citation

Jerzy Borycki and Malgorzata Okulska-Bozek "Surface free energy of polyimide aligning layers", Proc. SPIE 4147, Liquid Crystals: Chemistry, Physics, and Applications, (12 May 2000); https://doi.org/10.1117/12.385696

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