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Chemoselective Polymers, Nanoparticles, and Nanotubes in Chemical Sensor and Preconcentrator Applications

Published online by Cambridge University Press:  01 February 2011

Duane L Simonson ,
R Andrew McGill ,
Michael R. Papantonakis ,
Bernadette A. Higgins  and
Jennifer L. Stepnowski
Duane L Simonson
Affiliation:
[email protected], US Naval Research Laboratory, Materials and Sensors, Code 6365 b3/151, 4555 Overlook Ave., SW, Washinton, DC, Washington, DC, 20375, United States, 202-404-6190, 202-767-2087
R Andrew McGill
Affiliation:
[email protected], US Naval Research Laboratory, Materials and Sensors, Code 6365, 4555 Overlook Ave., SW, Washinton, DC, Washington, DC, 20375, United States
Michael R. Papantonakis
Affiliation:
[email protected], US Naval Research Laboratory, Materials and Sensors, Code 6365, 4555 Overlook Ave., SW, Washinton, DC, Washington, DC, 20375, United States
Bernadette A. Higgins
Affiliation:
[email protected], US Naval Research Laboratory, Materials and Sensors, Code 6365, 4555 Overlook Ave., SW, Washinton, DC, Washington, DC, 20375, United States
Jennifer L. Stepnowski
Affiliation:
[email protected], NRL/ NOVA Research, Inc., Materials and Sensors, NOVA Research, Inc.,, 2300 Elkin Ave., Suite 230, Alexandria, VA, 22308, United States
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Abstract

The functionalization of polymers and nano-materials with 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP) groups provides materials suitable for a variety of preconcentrator and sensor applications. These are especially useful in high vapor pressure, hydrogen-bond basic vapor collection. These specific interactions lead to high efficiency collection of basic analytes such as DMMP (organophosphonates), DNT, and TNT (nitroaromatics). The lower vapor pressure analytes such as RDX have a larger dependence on surface interactions without specific (hydrogen bond) interactions. The use of carbosilane polymers with HFIP pendant groups offers dramatic improvements over fluoropolyol (FPOL) and siloxane polymers in sensor and precon applications. The sorbent capacity and thermal stability are both dramatically improved. In this work we will demonstrate the use of Carbon Nanotube (CNT) composites with HFIP polymers as sorbent coatings and evaluate their use as SPME coatings.

Keywords

absorbentgas chromatographychemical synthesis
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1081: Symposium P – Carbon Nanotubes and Related Low-Dimensional Materials , 2008 , 1081-P14-05
Copyright
Copyright © Materials Research Society 2008

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