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Thermooxidation‐induced Surface Modifications of the Ethylene–Methyl Acrylate Copolymer as Investigated by Time‐of‐flight Particle‐induced Desorption Mass Spectrometry. Part I: Individual Homopolymers
Author(s) -
Nsouli B.,
Dole P.,
Allali H.,
Chauchard J.,
Thomas J.P.
Publication year - 1996
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/(sici)1097-0231(19960131)10:2<157::aid-rcm438>3.0.co;2-j
Subject(s) - chemistry , copolymer , desorption , mass spectrometry , acrylate , methyl acrylate , polyethylene , degradation (telecommunications) , thermal desorption , ethylene , polymer chemistry , particle (ecology) , ion , static secondary ion mass spectrometry , chemical engineering , secondary ion mass spectrometry , analytical chemistry (journal) , polymer , chromatography , organic chemistry , catalysis , adsorption , telecommunications , computer science , engineering , geology , oceanography
Particle‐induced desorption mass spectrometry has been used to investigate surface modifications of the homopolymers of poly(ethylene‐co‐methyl acrylate), namely polyethylene (PE) and polymethyl acrylate (PMA), upon thermal degradation (up to 168 hours at 180 °C). The thermooxidation of PE is characterized by the formation of new ion fragments, both negative and positive, which have been identified. For the PMA material it has not been possible to detect any significant modifications resulting from thermal degradation, as either negative‐ or positive‐ions. However, negative‐ion emission is recommended for discriminating the contribution of each homopolymer to the degradation process of the copolymer.