Proceedings of the Korean Fiber Society Conference (한국섬유공학회:학술대회논문집)

The Korean Fiber Society (한국섬유공학회)
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Synthesis and Optical Properties of Poly(hydroxyphenylbenzoxazole): A Colorimetric and Fluorescent Sensor for Ionic Species

  • Lee, Jin-Koo (Organic ＆ Optoelectronic Materials Laboratory, Department of Textile Engineering, Chungnam National University) ;
  • Kim, Tae-Hyun (Organic ＆ Optoelectronic Materials Laboratory, Department of Textile Engineering, Chungnam National University) ;
  • Kim, Young-shin (Organic ＆ Optoelectronic Materials Laboratory, Department of Textile Engineering, Chungnam National University) ;
  • Gang Li (Organic ＆ Optoelectronic Materials Laboratory, Department of Textile Engineering, Chungnam National University) ;
  • Park, Won-Ho (Organic ＆ Optoelectronic Materials Laboratory, Department of Textile Engineering, Chungnam National University) ;
  • Lee, Taek-Seung (Organic ＆ Optoelectronic Materials Laboratory, Department of Textile Engineering, Chungnam National University)
  • Published : 2003.10.01
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Abstract

We synthesized a poly[2-(2'-hydroxyphenyl) benzoxazole] under the two step procedures of Suzuki coupling polymerization with corresponding monomers followed by the deprotection of benzyl group. The polymer in DMF solution is applicable to colorimetric sensing fluoride anion, which shows a color change from colorless to yellow. High sensitivity to fluoride anion compared to other anions such as phosphate, chloride, and sulfate is ascribed to the high coordination ability of the 2-(2'-hydroxy phenyl)benzoxazole moiety in the polymer chain. Emission shift by metal cations, which can be applied to fluorescent sensing w as also observed in the polymer solution.

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