期刊
PLASMA PROCESSES AND POLYMERS
卷 5, 期 4, 页码 368-376出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ppap.200700142
关键词
AC barrier discharges; functionalization of polymers; polyethylene (PE); polymer modification; remote plasma processes
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 + NH3 mixtures at atmospheric pressure. Quantitative analysis by a recently developed ATR FT-IR spectroscopic method allows calculation of the number of NH2 groups generated per unit area Treatment in N-2 + H-2 afteralows was found to be most efficient in terms of area densities of primary amines achieved (more than 15 nm(-2)), but appreciable quantities of -NH2, 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.
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