Surface Wettability Controllable Polyimides Having Various Photoreactive Groups by Photo-irradiation

The soluble polyimides were synthesized from tetracarboxylic dianhydrides such as 3,4'-oxydiphthalic anhydride (3,4’-ODPA) and diamine monomers having various photoreactive groups, which are photo-oxidative groups, photoreaction groups based on photoresist technology, and photochromic groups. T...

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Bibliographic Details
Published inJournal of Photopolymer Science and Technology Vol. 31; no. 4; pp. 457 - 462
Main Authors Tsuda, Yusuke, Koga, Tatsuya, Shimogawa, Tatsuya, Shiki, Ryosuke, Sakata, Daichi
Format Journal Article
LanguageEnglish
Published Hiratsuka The Society of Photopolymer Science and Technology(SPST) 25.06.2018
Japan Science and Technology Agency
Subjects
Anhydrides
Contact angle
Dianhydrides
Hydrophobicity
Light irradiation
Photoreactive group
Photoresists
Polyimide
Polyimide resins
Surface analysis
Surface analysis (chemical)
Surface wettability
Thin films
Ultraviolet radiation
UV-Vis light irradiation
Wettability
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Summary:The soluble polyimides were synthesized from tetracarboxylic dianhydrides such as 3,4'-oxydiphthalic anhydride (3,4’-ODPA) and diamine monomers having various photoreactive groups, which are photo-oxidative groups, photoreaction groups based on photoresist technology, and photochromic groups. The thin films of obtained polyimides were irradiated by UV light (λ max; 254 nm or 365 nm), and the contact angles for the water decreased from near 100° (hydrophobicity) to minimum 20° (hydrophilicity) in proportion to irradiated UV light energy. The reversible wettability changes of the polyimides having photochromic groups by UV-Vis light irradiation were also investigated. Various surface analysis such as ATR, solid state refractive UV, XPS support above surface wettability changes of the polyimides.
ISSN:0914-9244
1349-6336
DOI:10.2494/photopolymer.31.457