Simple synthesis of a library of zwitterionic surfactants via michael-type addition of methacrylate and alkane thiol compounds

Ryosuke Matsuno, Kimiaki Takami, Kazuhiko Ishihara

研究成果: ジャーナルへの寄稿学術誌査読

33 被引用数 (Scopus)

抄録

A library of zwitterionic phosphorylcholine surfactants with various alkyl chain lengths and compositions was readily prepared from a combination of 2-(methacryloyloxy)ethyl phosphorylcholine (MPC) and various alkanethiol compounds via Michael-type addition. The critical micelle concentration (CMC) was evaluated by surface tensiometry. At the CMC, the surface tension of these aqueous solutions decreased significantly to below 40 mN/m. For the zwitterionic surfactants composed of MPC, and fluoroalkane and alkanedithiol, the surface tension was approximately 24, and 50 mN/m, respectively. From the equation log (CMC) = A - Bn, where n is the number of carbon atoms in the alkyl chain, A and B were calculated as 1.09 and 0.44, respectively. The value of the slope B was between that of ionic (B = 0.30) and nonionic surfactants (B = 0.50). Despite the ionic nature of the surfactants, their behavior was closer to that of nonionic surfactants.

本文言語英語
ページ(範囲)13028-13032
ページ数5
ジャーナルLangmuir
26
16
DOI
出版ステータス出版済み - 8月 17 2010
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 凝縮系物理学
  • 表面および界面
  • 分光学
  • 電気化学

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