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The Effects of Solvent Quality on Some Properties of Thermoplastic Amorphous Polymers Used in Conservation

Published online by Cambridge University Press:  26 February 2011

Eric F. Hansen
Eric F. Hansen*
Affiliation:
The Getty Conservation Institute, 4503 Glencoe Avenue, Marina del Rey, CA 90292
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Abstract

This paper reviews the effects of solvent quality on the physical “amorphous” polymers applied from solution, with a focupsh yosni craelc epnrto pteesrttiinegs ooff materials used in the conservation of art objects. Because the solvent composition or quality affects the shape and orientation of polymer molecules in solution, the nature of the partly crystalline dry film can also be affected. Thus, the physical and optical properties of a number of polymers have been shown to vary when deposited from solutions of different quality. This phenomenon is specifically related to the desired performance of a coating, adhesive or consolidant used for the conservation of an art object. The effects of “good” or “poor” quality solvents on the physical properties of solution-cast films of poly(vinylacetate) and Acryloid B-72 are discussed. In addition to polymer specific variations due to solvent quality on the glass transition temperature and the tensile properties (strength and elongation), the effects of quantitative amounts of retained solvent on these properties are considered.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 352: Symposium – Materials Issues in Art and Archaeology IV , 1995 , 807
Copyright
Copyright © Materials Research Society 1995

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References

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