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Surface and interfacial properties of poly(amic acid)s and polyimides
Author(s) -
Ioan Silvia,
Cosutchi Andreea Irina,
Hulubei Camelia,
Macocinschi Doina,
Ioanid Ghiocel
Publication year - 2007
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.20717
Subject(s) - wetting , polyimide , surface energy , materials science , surface tension , contact angle , van der waals force , polar , polymer chemistry , chemical engineering , surface (topology) , composite material , thermodynamics , organic chemistry , chemistry , molecule , layer (electronics) , physics , geometry , mathematics , astronomy , engineering
The correlation between surface tension parameters and the chemical composition of poly(amic acid) and polyimide films, before and after plasma treatment, was investigated. Calculations are based on the geometric mean approach according to Owens, Wendt, Rabel, and Kälble, on the Lifshitz‐van der Waals acid/base approach according to Van Oss, Good, and Chaudhury, as well as on the theoretical method which implies the quantitative structure–property relationships. The polar components for all films investigated contribute significantly to the total surface tensions, as due to the large electron‐donor interactions. Plasma treatment alters the surface energy of samples, changing their surface polarity and wettability. Surface wettability and hydrophilicity trends for poly(amic acid)s and their polyimides were also studied by means of the free energy of hydration between compounds and water. These properties recommend the polyimides as excellent materials for electrical compounds and biomaterials. POLYM. ENG. SCI., 47:381–389, 2007. © 2007 Society of Plastics Engineers.