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Design, Synthesis and Electrospinning of a Novel Fluorescent Polymer for Optical Sensor Applications

Published online by Cambridge University Press:  15 March 2011

Soo-Hyoung Lee ,
Bon-Cheol Ku ,
X. Wang ,
L.A. Samuelson  and
J. Kumar
Soo-Hyoung Lee
Affiliation:
Center for Advanced Materials, Departments of Chemistry, University of Massachusetts Lowell, Lowell, MA 01854
Bon-Cheol Ku
Affiliation:
Center for Advanced Materials, Departments of Chemistry, University of Massachusetts Lowell, Lowell, MA 01854
X. Wang
Affiliation:
Center for Advanced Materials, Departments of Chemistry, University of Massachusetts Lowell, Lowell, MA 01854
L.A. Samuelson
Affiliation:
Natick Soldier Center, U.S. Army Soldier & Biological Chemical Command, Natick, MA 01760
J. Kumar
Affiliation:
Center for Advanced Materials, Departments of Chemistry and Physics, University of Massachusetts Lowell, Lowell, MA 01854
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Abstract

This work describes the synthesis and electrospinning of new fluorescent polymers and their use for the fabrication of optical chemical sensors. A new fluorescent monomer was first synthesized by coupling reactions between methacryloyl chloride and a pyrene derivative, 1-pyrene butanol. Fluorescent polymers containing pyrene molecules were then obtained by the copolymerization of this monomer with methylmethacrylate using 2,2'-azobisisobutyronitrile as the initiator. These polymers show distinct and well-defined fluorescence that is characteristic of the pyrene chromophores. Electrospinning was used to process these polymers into high surface area nanofibrous membranes for optical sensing. The resulting membranes show a high sensitivity to 2,4-dinitro toluene based on the fluorescence quenching of the pyrene chromophores. Fluorescence intensities decreased with increasing concentration of the 2,4-dinitro toluene. The quenching behavior follows Stern-Volmer bimolecular quenching kinetics. The synthesis, characterization, electrospinning fabrication, and sensing capability of these polymers will be discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 708: Symposium BB – Organic Optoelectronic Materials, Processing and Devices , 2001 , BB10.45
Copyright
Copyright © Materials Research Society 2002

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References

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