GC/MS and ESI/MS identification of the new generation plasticizers - cis and trans isomers of some 1,2-cyclohexane dicarboxylic acid di(n- and isononyl) esters |
| |
| Institution: | 1. Department of Mathematical and Informatics Sciences, Physical Sciences and Earth Sciences of Messina University, Viale Ferdinando Stagno D'' Alcontres 31, 98166 Messina, Italy;2. Le Studium, Loire Valley Institute for Advanced Studies, Orléans & Tours, France;3. Centre de Biophysique Moleculaire (CBM)-CNRS UPR 4301 du CNRS, rue Charles Sadron, 45071 Orleans CEDEX 2, France;4. Laboratoire Interfaces, Confinement, Matériaux et Nanostructures (ICMN) - UMR 7374 CNRS - Université d’Orléans, 1b rue de la Férollerie, CS 40059, 45071 Orléans cedex 2, France;1. Institute for Polymer Technologies e. V., 23966 Wismar, Germany;2. Department of Mechanical Engineering, Hochschule Wismar University of Applied Sciences, Technology, Business and Design, 23966 Wismar, Germany;3. Department of Plastics Technologies, Ilmenau University of Technology, 98693 Ilmenau, Germany;1. MMRI/ CAPPA-D, Department of Chemical Engineering, McMaster University, Hamilton, Ontario L8S 4L7, Canada;2. 3M Canada Company, London, Ontario, Canada;1. Physical Chemistry and Polymer Science (FYSC), Department of Materials and Chemistry, Faculty of Engineering, Vrije Universiteit Brussel (VUB), Pleinlaan 2, B-1050 Brussels, Belgium;2. Fiber and Colouration Technology Research Group, Department of Textiles, Faculty of Engineering and Architecture, Ghent University, Technologiepark 907, 9052 Ghent, Belgium;1. Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, United States;2. Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, United States;3. Department of Epidemiology, and Harvard T.H. Chan School of Public Health, Boston, United States;4. Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, United States;5. Vincent Obstetrics and Gynecology, Massachusetts General Hospital and Harvard Medical School, Boston, United States;6. National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, United States |
| |
| Abstract: | 1,2-Cyclohexane dicarboxylic acid diisononyl ester is also known as diisononyl cyclohexane-1,2-dicarboxylate (DINCH) is a complex mixture of the hydrogenation products of diisononyl benzene-1,2-dicarboxylate (DINP). They are the new generation plasticizers used instead of the dialkyl benzene-1,2-dicarboxylate in order to improve the flexibility of polymers (mainly PVC) and strongly reduce the toxic effects on human health during their release from polymers to the environment. The identification of these compounds was done by syntheses of some DINCH constituents, i.e. cis and trans isomers of three di(n- and isononyl) cyclohexane-1,2-dicarboxylates, such as di(3,5,5-trimethylhexyl) cyclohexane-1,2-dicarboxylates, di(2-methyloctyl) cyclohexane-1,2-dicarboxylates and dinonyl cyclohexane-1,2-dicarboxylates by catalytic hydrogenation of appropriate DINP and their analyses by gas chromatography – mass spectrometry (GC/MS) and electrospray - mass spectrometry (ESI/MS) methods. Both GC data (values of the retention times tR and arithmetic retention indices IA) and mass spectra obtained for these isomers allowed to determine their chemical structures. ESI/MS mode of analysis of these compounds gives the knowledge about their mass fragmentation without the differentiation between individual cis and trans isomers. |
| |
| Keywords: | Plasticizers DINCH isomers GC/MS ESI/MS Identification |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
