Probing the Interfacial Structure of Bilayer Plasma Polymer Films via Neutron Reflectometry

Yali Li, Andrew Nelson, Christopher D. Easton, David R. Nisbet, John S. Forsythe, Benjamin W. Muir*

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Bilayer plasma polymer (PP) films were examined using a combination of X-ray and neutron reflectometery and X-ray photoelectron spectroscopy to gain an understanding of the interfacial structures that form between the films. Three different PP films were produced from the monomers hexamethyldisiloxane (HMDSO), di(ethylene glycol) dimethyl ether (DG), and allylamine (AA) at different load powers. These films were used as "substrates" for the subsequent deposition of a deuterated DG (dDG) PP top film. The width of the interfacial region was found to be strongly dependent on the chemical and physical properties of the substrate film. These findings have relevance to the general use and application of plasma polymer films. We examine the effect of load power and monomer chemistry on the interface that forms between a plasma polymer substrate and a deuterated plasma polymer top film.

    Original languageEnglish
    Pages (from-to)534-543
    Number of pages10
    JournalPlasma Processes and Polymers
    Volume13
    Issue number5
    DOIs
    Publication statusPublished - 1 May 2016

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