Applied analysis of lacquer films based on pyrolysis-gas chromatography/mass spectrometry

Switchable Self‐Assembly of a Bioinspired Alkyl Catechol at a Solid/Liquid Interface: Competitive Interfacial, Noncovalent, and Solvent Interactions

“…The polymerization of these compounds through the enzymes (laccases) that are contained in their own sap leads to the formation of a cross-linked polymer that constitutes the protective film thanks to its tendency to adsorb on surfaces. [5] This ability of catechol derivatives to interact with surfaces has been exploited by many scientists worldwide to develop new functional adhesives [6] and protective-coating films. [7] However, despite numerous successfully developed and applied studies so far, understanding the basic behavior of catechols on surfaces still remains a challenge.…”

Application of Pyrolysis Gas Chromatography/Mass Spectrometry in Lacquer Research: A Review

“…After comparing the results with the characteristic pyrolysis products of urushiol, laccol, and thitsiol, the ancient lacquer film and Nanban lacquer film were assigned to Rhus vernicifera, the old lacquerware imported from an Asian country was assigned to Melanorrhoea (Gluta) usitata. However, although they were also called "lacquer," the Baroque and Rococo lacquer films were identified as being made from a natural resin [45]. Meanwhile, the pyrolysis results of the six pieces of lacquer that were obtained from a Ryukyu lacquerware collection belonging to the Urasoe Art Museum of Japan showed that some pieces were made from Rhus vernicifera sap and some were made from Rhus succedanea sap [46].…”

Application of Pyrolysis-Gas Chromatography/Mass Spectrometry to the Analysis of Lacquer Film

“…The lacquers were coated on a 70 cm × 40 cm glass plates. They were allowed to polymerize in a humiditycontrolled chamber at a relative humidity of 70-90% at 20˚C for 12 h, and then removed from the chamber and stored in the open air for 3 years [38].…”

“…www.intechopen.com [38]. Pieces of lacquer taken from a four-eared jar that is a Japanese National Important Cultural Property found in 16 th -17 th century Kyoto ruins, called Sample 4, was a piece of lacquer obtained from the side of the vessel [22].…”

“…The Baroque and Rococo lacquer films were obtained from the wood surfaces of the Rococo church St. Alto in Altomunster, Munich, Germany, identified as Samples 5 [38]. It is sometimes extremely important to determine whether objects that are claimed to be lacquerware are actually created from lacquer sap or other resins.…”