Bardet, M., Gerbaud, G., Trân, Q. and Hediger, S. (2007). Study of interactions between polyethylene glycol and archaeological wood components by 13C high-resolution solid-state CP-MAS NMR. J Archaeol Sci 34 (10). Vol 34(10), pp. 1670-1676.
 Title The title of the publication or report |
Study of interactions between polyethylene glycol and archaeological wood components by 13C high-resolution solid-state CP-MAS NMR | ||
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Issue The name of the volume or issue |
J Archaeol Sci 34 (10) | ||
Series The series the publication or report is included in |
Journal of Archaeological Science | ||
Volume Volume number and part |
34 (10) | ||
Page Start/End The start and end page numbers. |
1670 - 1676 | ||
Biblio Note This is a Bibliographic record only. |
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Publication Type The type of publication - report, monograph, journal article or chapter from a book |
Journal | ||
Abstract The abstract describing the content of the publication or report |
The authors demonstrate that NMR is an useful analytical tool to characterize rapidly samples of conserved wooden objects. By choosing an appropriate value of the contact time (from 3 to 5 ms) for which the PEG component gives only a small residual NMR signal in the CP-MAS experiment, it is possible to edit selectively the spectra of the wood components. It allows one to visualize the degradation extent of the archaeological wood even when the conservation processes have been already applied. Moreover, by studying the kinetics of CP-MAS experiments, the time constants, T1ÏH and TCH values for PEG moiety were computed. From these data, it is shown that either in the crude commercial product or incorporated in archaeological woods, two components are present and they are the signatures of crystalline (or ordered) and amorphous (or disordered) molecular domains. Moreover, it was shown in the archaeological woods that almost 30% of PEG was in close molecular interactions with lignins. The study is evidence that the PEG in conserved wood can interact at a molecular level with wood components. It also demonstrates that the PEG diffuses inside the residual cell walls of archaeological wood. | ||
Year of Publication The year the book, article or report was published |
2007 | ||
Locations Any locations covered by the publication or report. This is not the place the book or report was published. |
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Source Where the record has come from or which dataset it was orginally included in. |
BIAB
(The British & Irish Archaeological Bibliography (BIAB))
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Relations Other resources which are relevant to this publication or report |
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Created Date The date the record of the pubication was first entered |
19 Sep 2007 |
