The effect of disinfection methods on the stability of photographic gelatin

The effect of disinfection methods on the stability of photographic gelatin The influence of disinfection methods on paper-based archival and library materials has been well documented and, thus, these methods are commonly used in paper conservation. However, little is known about the effect of these methods on the emulsion layer of photographic prints, which is often formed by photographic gelatin. In this paper, we examine the stability of photographic gelatin after disinfection by three methods: γ-radiation, ethylene oxide and butanol vapors. The degree of gelatin degradation and its possible mechanism were determined by monitoring its molar weight (by measuring its intrinsic viscosity), primary structure (by amino acid analysis), and secondary structure (by FTIR spectroscopy and XRD). The smallest risk to the material was posed by butanol vapors, which suggests that this is a promising disinfection method for photographic prints based on gelatin. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Polymer Degradation and Stability Elsevier

The effect of disinfection methods on the stability of photographic gelatin

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Publisher
Elsevier
Copyright
Copyright © 2016 Elsevier Ltd
ISSN
0141-3910
D.O.I.
10.1016/j.polymdegradstab.2016.03.034
Publisher site
See Article on Publisher Site

Abstract

The influence of disinfection methods on paper-based archival and library materials has been well documented and, thus, these methods are commonly used in paper conservation. However, little is known about the effect of these methods on the emulsion layer of photographic prints, which is often formed by photographic gelatin. In this paper, we examine the stability of photographic gelatin after disinfection by three methods: γ-radiation, ethylene oxide and butanol vapors. The degree of gelatin degradation and its possible mechanism were determined by monitoring its molar weight (by measuring its intrinsic viscosity), primary structure (by amino acid analysis), and secondary structure (by FTIR spectroscopy and XRD). The smallest risk to the material was posed by butanol vapors, which suggests that this is a promising disinfection method for photographic prints based on gelatin.

Journal

Polymer Degradation and StabilityElsevier

Published: Jul 1, 2016

References

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