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A New Tool for Cellulose Degradation Studies

Published online by Cambridge University Press:  22 February 2011

Jakoa E. Arthur ,
J. P. Jacksona ,
E. Arthurs ,
L. A. Schwalbe ,
R. M. Sega ,
D. E. Windisch ,
W. H. Long  and
E. A. Stappaerts
Jakoa E. Arthur
Affiliation:
Kaman Sciences, 1500 Garden of the Gods Road, Colorado Springs, CO 80907
J. P. Jacksona
Affiliation:
Oriel Corparation, 250 Long Beach Blvd. Stratford, CT 06497
E. Arthurs
Affiliation:
Los Alamos National Laboratory, P.O. Box 1663, Mail Stop F664, Los Alamos, NM 87545
L. A. Schwalbe
Affiliation:
Los Alamos National Laboratory, P.O. Box 1663, Mail Stop F664, Los Alamos, NM 87545
R. M. Sega
Affiliation:
Frank J. Seiler Research Laboratory, Air Force Academy, Colorado Springs, CO 80840
D. E. Windisch
Affiliation:
Northrop Research and Technology Center, One Research Park, Palos Verdes Peninsula, CA 90274
W. H. Long
Affiliation:
Northrop Research and Technology Center, One Research Park, Palos Verdes Peninsula, CA 90274
E. A. Stappaerts
Affiliation:
Northrop Research and Technology Center, One Research Park, Palos Verdes Peninsula, CA 90274
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Abstract

We describe a new technique for studying thermally-induced chemical transformations in cellulose. The apparatus consists of a carbon dioxide laser for heating, an infrared thermometer, and an optical reflectance spectrometer. To illustrate the technique, we present measurements from a single piece of sample linen along five isotherms in the range 200–290°C. The results are discussed in terms of first-order chemical rate theory and a fourstep model. From the measurements we derive the activation energies, Arrhenius constants, and reflectivities of the chromophoric states.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 123: Symposium L – Materials Issues in Art and Archaeology I , 1988 , 311
Copyright
Copyright © Materials Research Society 1988

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References

1. Arney, J. S. and Jacobs, A. J., Tappi 63(1) January 1980.Google Scholar
2. Shafizadeh, F. and Bradbury, A. G. W., J. Appl. Poly. Sci. 23, 1431 (1979).Google Scholar
3. Jackson, J. P., Arthurs, E., Schwalbe, L. A., Sega, R. M., Windisch, D. E., Long, W. H., and Stappaerts, E. A., “Infrared Laser Heating for Studies of Cellulose Degradation” [accepted for publication in Applied Optics].Google Scholar