%0 Journal Article
%T IN-SITU RAMAN SPECTROSCOPIC CHARACTERISATION OF POLYMERS USED IN PAST CONSERVATION TREATMENTS
%A Norman H. Tennent
%A Joost Caen
%A Patrick Courtney
%A Enrique Lozano Diz
%J E-Preservation Science
%D 2009
%I Morana RTD d.o.o.
%X This paper reports the successful characterisation of polymersfrom past conservation treatments using Raman spectroscopywith a fibre-optic probe. It has been demonstratedfor the first time that this methodology is well suited to thein-situ examination of polymers used as adhesives and gapfillersfor conservation of glass artefacts. By means of aRaman spectroscopic instrument with a fibre-optic probe,conservation polymer spectra were recorded non-destructively,with a spectral resolution of 2 cm-1 in the range 200-3200 cm-1. Polymer identification proved straightforward forgap-fillers and, for adhesives, different polymers were alsosuccessfully distinguished, even in a glass / adhesive /glass bond less than 100 ¦Ìm in width. In addition to polymeridentification, Fe2O3 was identified as the pigment not onlyin restored areas but also in the original grisaille paint forthe grey toning for the glass pictorial scene.
%K Fibre-optic
%K non-destructive
%K Raman
%K identification
%K polymers
%K stained glass
%U http://www.morana-rtd.com/e-preservationscience/2009/Tennent-01-07-2008.pdf