1. In situ IR Spectroscopy as a Tool to Better Understand the Growth Mechanisms of Plasma Polymers Thin Films.
- Author
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Ligot, Sylvie, Thiry, Damien, Cormier, Pierre‐Antoine, Raynaud, Patrice, Dubois, Philippe, and Snyders, Rony
- Subjects
DEPOLYMERIZATION ,PLASMA polymerization ,POLYMERIZATION ,MAGNETRON sputtering ,SPECTRUM analysis - Abstract
Aiming to get a better understanding of the growth mechanism during the plasma polymerization process of ethyl lactate, the surface reactivity of ester-bearing fragments has been determined by combining in situ FTIR spectroscopy and XPS measurements. While the plasma density of the reactive ester-bearing fragment decreases by one order of magnitude (from ~2x10
20 m-3 to ~2x1019 m-3 ) as the power increases from 60 to 280 W, the ester group density in the plasma polymer films decreases from ~1.5x1019 m-2 /m² to ~1.7x1017 m². The associated incorporation efficiency of the reactive ester-bearings fragments in the films (sester) consequently increases from 2.6x10-6 to 1.3x10-4 when increasing the power. This behavior is attributed to higher activation the growing film surface. [ABSTRACT FROM AUTHOR]- Published
- 2015
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