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N ‐isopropylacrylamide decomposition process in helium plasma
Author(s) -
Martínez H.,
RodríguezLazcano Y.
Publication year - 2006
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.25454
Subject(s) - plasma , acetylene , analytical chemistry (journal) , poly(n isopropylacrylamide) , helium , emission spectrum , decomposition , materials science , argon , monomer , plasma parameters , chemistry , atomic physics , spectral line , copolymer , physics , polymer , chromatography , organic chemistry , quantum mechanics , astronomy , composite material
Emission spectroscopy was applied to observe decomposed species of N ‐isopropylacrylamide (NIPAAm) exposed to He plasma, which was generated by AC discharge at the pressure of 400 Pa. As the NIPAAm monomer was exposed to He plasma, light emitted from the NIPAAm and plasma was monitored. In the diagnosis measurement, several emission peaks assigned to the H α and H β atomic lines, CH 3 O, CN(B 2 Σ‐X 2 Π), CH(A 2 Δ‐X 2 Π), and C 3 H 5 , CN, CHO, CH 2 O, and C 4 H 2 + transitions were observed and measured at various discharge times. The present results show the presence of C 4 H 2 and C 4 H 2 + *, which are not manifested in great concentration in the simulation of RF acetylene discharge. The time dependence of the emission intensities was also investigated. When the discharge time of He plasma was increased, the emission intensities of the observed transitions also increased and then gradually decreased. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 103: 2591–2596, 2007