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Plasma Amination of Low‐Density Polyethylene by DBD Afterglows at Atmospheric Pressure
Author(s) -
Klages ClausPeter,
Grishin Artur
Publication year - 2008
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.200700142
Subject(s) - low density polyethylene , amination , atmospheric pressure , dielectric barrier discharge , polyethylene , analytical chemistry (journal) , atmospheric pressure plasma , dielectric , materials science , chemistry , plasma , polymer chemistry , organic chemistry , meteorology , catalysis , optoelectronics , physics , quantum mechanics
Surfaces of LDPE can be functionalized with primary amino groups using the afterglows from dielectric barrier discharges in N 2 , N 2 + H 2 , and N 2 + NH 3 mixtures at atmospheric pressure. Quantitative analysis by a recently developed ATR FT‐IR spectroscopic method allows calculation of the number of NH 2 groups generated per unit area. Treatment in N 2 + H 2 afterglows was found to be most efficient in terms of area densities of primary amines achieved (more than 15 nm −2 ), but appreciable quantities of NH 2 , up to about 3 nm −2 , are also obtained in pure N 2 . Possible mechanisms of the amination reaction and the roles of gas additives are discussed.