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Synthesis of Resorcinol Formaldehyde Aerogel Using UV Photo-Initiators for Inertial Confinement Fusion Experiments

Published online by Cambridge University Press:  10 March 2011

R.R. Paguio ,
K.M. Saito ,
J.F. Hund  and
R. M. Jimenez
R.R. Paguio
Affiliation:
General Atomics, PO Box 85608, San Diego, California 92186-5608, U.S.A.
K.M. Saito
Affiliation:
General Atomics, PO Box 85608, San Diego, California 92186-5608, U.S.A.
J.F. Hund
Affiliation:
General Atomics, PO Box 85608, San Diego, California 92186-5608, U.S.A.
R. M. Jimenez
Affiliation:
General Atomics, PO Box 85608, San Diego, California 92186-5608, U.S.A.
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Abstract

Resorcinol formaldehyde (R/F) aerogels have been used in a variety of laser targets for Inertial Confinement Fusion (ICF) experiments in the form of thin films, cast shapes such as cylinders and cubes, and hollow and solid microspheres. Besides ICF experiments, R/F aerogel can be used for capacitors, batteries, thermal insulation, absorption/filtration media, and chromatographic packing applications. Traditionally, R/F aerogel is synthesized using a 2-step (base/acid catalysis) polycondensation reaction. We have developed a novel process to synthesize the R/F aerogel using free radical UV initiator at room temperature in 10 minutes using a UV light source. This paper will review this process, which was developed to synthesize R/F aerogels using UV-free radical initiators. Scanning electron microscopy results will also be discussed to show that the aerogel pore structure is similar to traditional R/F aerogels. Fabrication of solid and hollow microspheres for ICF experiments using this R/F aerogel synthesis technique and the technique’s limitations will also be discussed.

Keywords

aerogelchemical synthesisfoam
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1306: Symposium BB – Aerogels and Aerogel-Inspired Materials , 2011 , mrsf10-1306-bb12-05
Copyright
Copyright © Materials Research Society 2011

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References

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