Rapid Communication in Photoscience

Korean Society of Photoscience (한국광과학회)
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Fluorescence Micropatterning Based on the Polymeric Photobase Generator Containing Oxime-Urethane Groups by Dansylation

  • Choi, Won San (Department of Chemical and Biological Engineering, Hanbat National University) ;
  • Kim, Hak Soo (Department of Polymer Engineering, Chonnam National University) ;
  • Chae, Kyu Ho (Department of Polymer Engineering, Chonnam National University)
  • Received : 2013.03.21
  • Accepted : 2013.04.20
  • Published : 2013.03.01
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Abstract

A polymeric photobase generator containing oxime-urethane groups is applied to a fluorescence micropatterning material. Polymer bearing oxime-urethane groups was prepared by copolymerization of methyl methacrylate with methacryloyloxyethyl benzophenoneoxime urethane (MBU). The reaction of amino groups in the irradiated copolymer film with dansyl chloride (Dns-Cl) was monitored by using UV absorption, IR absorption and fluorescence spectroscopy. The fluorescence spectrum of the Dns-Cl-treated irradiated copolymer film shows a strong fluorescence with a fluorescence maximum wavelength at 510 nm. A blue fluorescent micropattern with a line width of $2{\sim}3{\mu}m$ was obtained. Treatment of the irradiated copolymer film with Dns-Cl and rhodamine B mixture led to the formation of green, red, and orange-colored fluorescence micropatterns. Thus, various colored micropatterns on a single polymer film can be obtained by selective excitation of each dye molecules.

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References

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