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GC/MS and PGC/MS analyses of plasma polymerization for benzaldehyde
Author(s) -
Zhao Qiang,
Zhu Yufen,
Cai Minxi,
Xie Mandan,
Liu Xueshu
Publication year - 1992
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1992.070450620
Subject(s) - benzaldehyde , hydrogen atom abstraction , chemistry , radical , reactivity (psychology) , mass spectrometry , polymer , aldehyde , polymer chemistry , plasma , polymerization , fragmentation (computing) , molecule , organic chemistry , photochemistry , chromatography , catalysis , medicine , physics , alternative medicine , pathology , quantum mechanics , computer science , operating system
Gas chromatography/mass spectrometry studies of gas condensates in plasma and pyrolysis products of plasma polymer for benzaldehyde were made. Both products' analyses indicate the significant presence of benzyl and carbonyl groups in plasma polymer samples. Infrared measurements were also used to correlate the structures suggested by GC/MS results. A radical mechanism, which involved hydrogen abstraction, aldehyde group abstraction, and benzyl fragmentation under plasma activation, was proposed. The highly crosslinked and branched structures of the plasma polymer were attributed to the subsequent reactivity of free radicals, formed as a result of the scission of the chemical bonds in the benzaldehyde molecules.