<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Pascoal Neto, C.</style></author><author><style face="normal" font="default" size="100%">Rocha, J.</style></author><author><style face="normal" font="default" size="100%">Gil, A.</style></author><author><style face="normal" font="default" size="100%">Cordeiro, N.</style></author><author><style face="normal" font="default" size="100%">Esculcas, a P.</style></author><author><style face="normal" font="default" size="100%">Rocha, S.</style></author><author><style face="normal" font="default" size="100%">Delgadillo, I.</style></author><author><style face="normal" font="default" size="100%">de Jesus, J. D.</style></author><author><style face="normal" font="default" size="100%">Correia, a J.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">13C solid-state nuclear magnetic resonance and Fourier transform infrared studies of the thermal decomposition of cork.</style></title><secondary-title><style face="normal" font="default" size="100%">Solid state nuclear magnetic resonance</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Fourier Transform Infrared (citation)</style></keyword><keyword><style  face="normal" font="default" size="100%">Hot Temperature</style></keyword><keyword><style  face="normal" font="default" size="100%">Lignin</style></keyword><keyword><style  face="normal" font="default" size="100%">Lignin: chemistry</style></keyword><keyword><style  face="normal" font="default" size="100%">Lipids</style></keyword><keyword><style  face="normal" font="default" size="100%">Magnetic Resonance Spectroscopy</style></keyword><keyword><style  face="normal" font="default" size="100%">Membrane Lipids</style></keyword><keyword><style  face="normal" font="default" size="100%">Membrane Lipids: chemistry</style></keyword><keyword><style  face="normal" font="default" size="100%">Polysaccharides</style></keyword><keyword><style  face="normal" font="default" size="100%">Polysaccharides: chemistry</style></keyword><keyword><style  face="normal" font="default" size="100%">Spectroscopy</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1995</style></year><pub-dates><date><style  face="normal" font="default" size="100%">1995///</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.ncbi.nlm.nih.gov/pubmed/7773647</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">4</style></volume><pages><style face="normal" font="default" size="100%">143 - 151</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The thermal decomposition of cork has been studied by Fourier transform infrared (FTIR) spectroscopy and 13C solid-state nuclear magnetic resonance (NMR) spectroscopy with cross-polarization and magic-angle spinning (CP-MAS), high-power 1H decoupling (HPDEC) and cross-polarization depolarization-polarization (CPDP). Waxes and other soluble components of cork begin to decompose at ca. 150 degrees C. This is accompanied by partial decomposition of suberin, probably initiated at the points of attachment to the cell wall. The carbohydrates begin to decompose at ca. 200 degrees C. The decomposition of lignin begins at 250-300 degrees C, while suberin undergoes further degradation. Significant amounts of coke are formed in the process. At 400 degrees C cork has been transformed into coke with traces of partially decomposed suberin. The thermal decomposition of cork is dependent on the calcination time, particularly in the 200-350 degrees C range.</style></abstract><issue><style face="normal" font="default" size="100%">3</style></issue><notes><style face="normal" font="default" size="100%">The following values have no corresponding Zotero field:&lt;br/&gt;accession-num: 7773647</style></notes></record></records></xml>