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Ageing of resin from Pinus species assessed by infrared spectroscopy

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10.1007/s00216-016-9496-x
 
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Beltran Sanchidrian, Victòria
Salvadó Cabré, NativitatMés informacióMés informacióMés informació
Buti Papiol, SalvadorMés informacióMés informacióMés informació
Pradell Cara, TrinitatMés informacióMés informacióMés informació
Document typeArticle
Defense date2016-04-06
Rights accessOpen Access
All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder
ProjectANALISIS DE CAPAS PICTORICAS Y DECORACIONES EN VIDRIOS Y VIDRIADOS HISTORICO-ARTISTICOS: TECNOLOGIA, COLOR, ESTABILIDAD Y CONSERVACION (MINECO-MAT2013-41127-R)
Abstract
Resins obtained from Pinus genus species have been widely used in very different fields throughout history. As soon as the resins are secreted, molecular changes start altering their chemical, mechanical and optical properties. The ageing processes are complex, and the chemical and structural changes associated with resin degradation are not yet fully known. Many questions still remain open, for instance changes happening in pimaranes, one of the two diterpenoid constituents of the resin. A systematic study of the ageing process of Pinus resins is done through Fourier transform infrared spectroscopy (FTIR) using chemical standards and complementing the obtained results with gas chromatography coupled to mass spectrometry (GC/MS) analysis when necessary. Moreover, long-term degradation processes are also investigated through the analysis of a selection of dated historical resins. This study overcomes the limitations of GC/MS and brings new information about the reactions and interactions between molecules during Pinus resin ageing processes. It also provides information about which bonds are affected and unaffected, and these can be used as specific markers of the degradation and of the resins themselves. [Figure not available: see fulltext.]
CitationBeltran, V., Salvadó, N., Butí, S., Pradell, T. Ageing of resin from Pinus species assessed by infrared spectroscopy. "Analytical and bioanalytical chemistry", 6 Abril 2016, vol. 408, núm. 15, p. 4073-4082. 
URIhttp://hdl.handle.net/2117/104735
DOI10.1007/s00216-016-9496-x
ISSN1618-2642
Publisher versionhttp://link.springer.com/article/10.1007%2Fs00216-016-9496-x
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  • Departament de Física - Articles de revista [2.047]
  • AMPC - Anàlisi de materials de Patrimoni Cultural - Articles de revista [31]
  • Departament d'Enginyeria Química - Articles de revista [2.116]
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