Abstract
Polypropylene was treated with low pressure glow discharge plasma for the introduction of functional groups in its surface using plasma of different types. For this purpose plasma containing nitrogen and hydrogen and coating by deposition of thin plasma polymerized layers of functional group carrying monomer with NH2 on it were used. The surface elemental composition was changed stoichiometrically by adjusting the plasma conditions depending on the feeding and plasma density. The optimum power plays an important role in the control of surface reactions between surface reactive species and plasma reactive species. Plasma-Polymerized-Allylamine (PPAa) thin film prepared with r.f. continuous and pulse wave power was characterized to study surface amine functionality. The surface amine content of PPAa at r.f. pulse wave power could be retained more efficiently than that of PPAa at r.f. continuous wave power because of less fragment of monomer. The stability test of r.f. pulse wave plasma polymerization indicated that the deposits of PPAa at the high r.f. pulse wave power were more stable than those at low r.f. pulse wave power after soaking it in tetrahydrofuran (THF).
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Jung, JS., Myung, SW. & Choi, H.S. Surface modification of polypropylene by nitrogen-containing plasma. Korean J. Chem. Eng. 25, 1190–1194 (2008). https://doi.org/10.1007/s11814-008-0196-x
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DOI: https://doi.org/10.1007/s11814-008-0196-x