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Development of oxidized sulfur polymer films through a combination of plasma polymerization and oxidative plasma treatment

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dc.contributor.authorAkhavan, B.
dc.contributor.authorJarvis, K.L.
dc.contributor.authorMajewski, P.J.
dc.date.issued2014
dc.description.abstractA novel two-step process consisting of plasma polymerization and oxidative plasma treatment is introduced in this article for the first time for the fabrication of −SOx(H)- functionalized surfaces. Plasma-polymerized thiophene (PPT) was initially deposited onto silicon wafers and subsequently SOx(H)-functionalized using air or oxygen plasma. The effectiveness of both air and oxygen plasma treatments in introducing sulfur−oxygen groups into the PPT film was investigated as the plasma input specific energy and treatment time were varied. The surface chemistries of untreated and treated PPT coatings were analyzed by X-ray photoelectron spectroscopy (XPS) and time-of-flight secondary ion mass spectroscopy (ToF-SIMS), whereas spectroscopic ellipsometry was used to evaluate the film thickness and ablation rate. Surface chemistry analyses revealed that high concentrations of −SOx(H) functionalities were generated on the surface upon either air or oxygen plasma treatment. It was found that, at low plasma input energies, the oxidation process was dominant whereas, at higher energies, ablation of the film became more pronounced. The combination of thiophene plasma polymerization and air/oxygen plasma treatment was found to be a successful approach to the fabrication of −SOx(H)-functionalized surfaces.
dc.identifier.citationLangmuir, 2014; 30(5):1444-1454
dc.identifier.doi10.1021/la4045489
dc.identifier.issn0743-7463
dc.identifier.issn1520-5827
dc.identifier.urihttps://hdl.handle.net/1959.8/158175
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.relation.fundingNational Centre of Excellence in Desalination Australia (NCEDA), Government of South Australia
dc.relation.fundingPremier Science and Research Fund (PSRF), Government of South Australia
dc.rightsCopyright 2014 American Chemical Society
dc.source.urihttps://doi.org/10.1021/la4045489
dc.subjectoxidative plasma treatment
dc.subjectoxygen plasma
dc.subjectplasma polymerization
dc.subjectPPT
dc.subjectspectroscopic ellipsometry
dc.subjectXPS
dc.titleDevelopment of oxidized sulfur polymer films through a combination of plasma polymerization and oxidative plasma treatment
dc.typeJournal article
pubs.publication-statusPublished
ror.mmsid9915910285601831

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