Identification of two polyamides (PA11 and PA1012) using pyrolysis-GC/MS and MALDI-TOF MS |
| |
| Authors: | Ting Wu Huilian Hu Dong Jiang Yiping Du Wei Jiang Haiting Wang |
| |
| Institution: | 1. Shanghai Key Laboratory of Functional Materials Chemistry, and Research Centre of Analysis and Test, East China University of Science and Technology, Shanghai 200237, PR China;2. Technical Center for Industrial Products and Raw Materials Inspection and Testing, Shanghai Entry-Exit Inspection & Inspection and Quarantine Bureau, Shanghai 200135, PR China |
| |
| Abstract: | The main goal of this work is to identify two polyamides (PA11 and PA1012) by mass spectrometry including pyrolysis-GC/MS and MALDI-TOF MS. PA11 and PA1012 have similar properties and cannot be distinguished by many other methods. Using pyrolysis-GC/MS, the pyrograms of PA11 and PA1012 at 600 °C were compared. Specific pyrolyzates for PA11 and PA1012 were obtained, 2-azacyclotridecanone for PA11 and 1,10-diaminodecane, 1,10-dicyanodecane for PA1012, respectively, which was the basis to distinguish them. Meanwhile, MALDI-TOF MS can give specific repeat unit for these two polyamides, dehydrated 11-aminoundecanoic acid (M = 183) for PA11, acetylate of dodecanedioic acid and diaminodecane (M = 366) for PA1012, which can be another means of identifying them. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
