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ePaper created 2017-03-14, 10:25:37 | version 1.49.03
1,0 0,9 0,8 0,7 0,6 0,5 n o i t c e l e r 2 amino group, stretching vibration amino group, bending vibration 4000 3500 3000 2500 2000 1500 1000 wave number in cm–1 pyrrolidine Contact Dr. rer. nat. Jakob Barz Phone +49 711 970-4114 jakob.barz@igb.fraunhofer.de Dr. rer. nat. Michael Haupt Phone +49 711 970-4028 michael.haupt@igb.fraunhofer.de The advantage of the method: Since the chemical target func- tional group is not present in the precursor molecules, particu- larly gentle plasma conditions are not required in contrast to the conventional method. On the contrary, optimal results are actually achieved at higher energy densities. This leads to ad- ditional positive effects such as high deposition rates and / or short process times on the one hand, and highly adherent and stable plasma polymer layers on the other hand. Results Literature Plasma polymer layers produced in this way were character- Elkin, B.; Müller, M.; Oehr, C. (2006) Verfahren zur chemischen Funktionalisierung von Oberlächen durch Plasmapolymerisation, DE 102004057155 ized by different analytical methods such as ellipsometry, FTIR spectroscopy, X-ray photoelectron spectroscopy and chemical derivatization. This allowed us to demonstrate a high density of the desired chemical functions. Furthermore, the layers deposited on different substrates (polymer, metal, ceramic) were tested for stability in various media (alkaline and acidic aqueous solutions, solvents such as alcohols or acetone) and proved to be stable. Outlook The generation of plasma polymers via ring opening can be applied in many ields where stable functional layers are required. The coatings can be applied to various materials in many different forms, from solid bodies and ilms to textiles and ibers. Fraunhofer IGB is thus able to offer its customers customized coatings for their products. 1 Reaction scheme of the ring- opening plasma. 2 FTIR spectrum of the pyrrolidine plasma polymer. 7 3