Hydrophilicity Enhancement of Copper Surface with Oligo(2-methyl-2-oxazoline) Having a Triazinethiol Moiety on Oligomer End

DOI Web Site 13 References Open Access
  • SATOH Kumiko
    Material and Biological Engineering Course, Industrial Systems Engineering Department, National Institute of Technology (KOSEN)
  • AISAWA Sumio
    Chemistry Course, Department of Chemistry and Biological Sciences, Faculty of Science and Engineering, Iwate University
  • HIRAHARA Hidetoshi
    Chemistry Course, Department of Chemistry and Biological Sciences, Faculty of Science and Engineering, Iwate University
  • KIKUCHI Yasuaki
    Department of General Science and Education, National Institute of Technology (KOSEN), Hachinohe College
  • NARITA Eiichi
    Chemistry Course, Department of Chemistry and Biological Sciences, Faculty of Science and Engineering, Iwate University

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Other Title
  • トリアジンチオール末端オリゴ（2-メチル-2-オキサゾリン）による銅表面の親水化

Abstract

<p>In order to enhance the wet property of a copper surface in water for use in manufacturing of integrated circuits for electric equipment, a thin film of thiol-type telechelics such as oligo(2-methyl-2-oxazoline) (OMeOZO) having a triazinethiol moiety on the oligomer end was prepared on the surface of a copper plate and then the resulted thin film was examined. First, the telechelics was synthesized by utilizing termination of the living OMeOZO prepared by the cationic ring-opening polymerization of 2-methyl-2-oxazoline (MeOZO) with triazinethiol. As a reference, mono MeOZO telechelics was also synthesized by the reaction of MeOZO with triazinethiol at 1:1 molar ratio. Then, the copper plate was dipped in the prepared telechelics solution to form the telechelics coating film on its surface. This coating was carried out by two ways, in which the adding order of the reagents was different. Changes in the surface properties of the resultant film on a copper plate were examined by the measurement of water contact angle, atomic force microscopy (AFM), and X-ray photoelectron spectroscopy (XPS). From the measurement of contact angle, the copper plate surface modified with OMeOZO was found to be much more hydrophilic compared to the reference. In addition, the state of the resultant telechelics film on the treated surface of a copper plate was elucidated by AFM observation and XPS analysis.</p>

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