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Thermal Oxidation Products of Nylon 6 Determined by MALDI‐TOF Mass Spectrometry
Author(s) -
Chionna Donatella,
Puglisi Concetto,
Samperi Filippo,
Montaudo Giorgio,
Turturro Antonio
Publication year - 2001
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/1521-3927(20010401)22:7<524::aid-marc524>3.0.co;2-b
Subject(s) - mass spectrometry , chemistry , mass spectrum , matrix assisted laser desorption/ionization , formamide , polymer , nylon 6 , amide , desorption , polymer chemistry , thermal oxidation , organic chemistry , chromatography , adsorption , silicon
Matrix‐assisted laser desorption ionisation (MALDI) mass spectrometry was used, in an attempt to find firm evidence for the structure of the species produced in the thermal oxidative degradation of Nylon 6 (Ny6), at 250°C in air. The MALDI spectra of the products showed the presence of polymer chains containing aldehydes, amides, methyl and N ‐formamide terminal groups. The aldehydes undergo further oxidation to produce carboxylic end groups. The formation of azomethines, from the further reaction of aldehydes with amino‐terminated Ny6 chains, is also supported by the appearance of specific peaks in the MALDI spectra.