Ex-situ SIMS characterization of plasma-deposited polystyrene near atmospheric pressure

Cristaudo, Vanina; Merche, Delphine; Poleunis, Claude; Devaux, Jacques; Eloy, Pierre; Reniers, François; Delcorte, Arnaud

doi:10.1016/j.apsusc.2019.03.032

Cited by 4 publications

(3 citation statements)

References 48 publications

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“…1450 and 1490 cm −1 (doublet, υ ring ) are related to δ CH and C═C aromatic ring vibrations and proof the dominance of monosubstituted phenyl groups. [ 41 ]…”

Section: Resultsmentioning

confidence: 99%

“…1450 and 1490 cm −1 (doublet, υ ring ) are related to δ CH and C═C aromatic ring vibrations and proof the dominance of monosubstituted phenyl groups. [41] Besides this, the bands associated with aromatic and aliphatic (asymmetric and symmetric) C-H stretching were observed. They are located as a set of C-H vibrations in the range of 2850-3100 cm −1 wavenumbers indicating the C-H vibrations of the aromatic phenyl ring at 3000-3100 cm −1 (υ C-H arom.ring ).…”

Section: Chemical Structure Of the Whole Filmsmentioning

confidence: 92%

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Structure of plasma‐deposited copolymer films prepared from acrylic acid and styrene: Part III sulfonation and electrochemical properties

Fahmy

Kolmangadi

Schönhals

et al. 2022

Plasma Processes & Polymers

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“…1450 and 1490 cm −1 (doublet, υ ring ) are related to δ CH and C═C aromatic ring vibrations and proof the dominance of monosubstituted phenyl groups. [ 41 ]…”

Section: Resultsmentioning

confidence: 99%

Section: Chemical Structure Of the Whole Filmsmentioning

confidence: 92%

Structure of plasma‐deposited copolymer films prepared from acrylic acid and styrene: Part III sulfonation and electrochemical properties

Fahmy

Kolmangadi

Schönhals

et al. 2022

Plasma Processes & Polymers

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“…This remarkable study sheds light on the energetics of the process of large Ar clusterinduced sputtering (or desorption) and substantiates their success for the 2D and 3D characterization of fragile (bio)molecules, such as those found in cells and tissue sections, 7,16,17 in organic electronics multilayers, 9 or in complex coatings developed for the industry. 18,19 However, the survival yield method relies on small benzylpyridinium molecules and, to our knowledge, the energetics of emission of large molecules (>kDa) has not been directly studied yet.…”

Section: Introductionmentioning

confidence: 99%

Mechanistic Insight into Gas Cluster-Induced Sputtering of Kilodalton Molecules Using Kinetic Energy Distribution Measurements

Delcorte

Poleunis

2019

J. Phys. Chem. C

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Recent progress in organic secondary ion mass spectrometry (SIMS) relied essentially on the development of new cluster beams, especially large atomic and molecular clusters formed via the adiabatic expansion of a gas in vacuum (Ar n +, [CH4] n +, [CO2] n +, [H2O] n +). Although computer simulations and a few experimental investigations have shed light on certain fundamental aspects of large cluster-induced molecular desorption, the analytical application of these new beams usually preceded the detailed understanding of their interaction with surfaces. Here, to gain insight into the molecular emission process, the axial kinetic energy distributions (KEDs) of secondary ions emitted from organic films bombarded with Ar330–5000 + and Bi5 + clusters were measured using a reflectron time-of-flight secondary ion mass spectrometer. Irganox 1010 was chosen as a model kilodalton molecule because a large body of SIMS data involving this molecule already exists in the literature. Our results show that the axial KED of Irganox molecular and fragment ions varies as a function of the scaled kinetic energy E/n of the Ar cluster projectile and so does the fraction of ions produced above the surface via unimolecular dissociation, which exhibit an energy deficit with respect to the full acceleration provided at the entrance of the spectrometer. Below a few tens of eV/atom, the KEDs of ions such as (M – H)− (m/z 1175) become gradually narrower and their formation via metastable decay in the gas phase above the surface intensifies. Interestingly, the molecular ion M•+ (m/z 1176) is essentially produced in the gas phase with both Ar n + and Bi5 + cluster beams. Specifics of the observed KEDs of negative and positive molecular ions are discussed in comparison with results of other experiments recently reported in the literature and of molecular dynamics (MD) computer simulations using a coarse-grained representation of kilodalton organic molecules. The measurement of the axial kinetic energy of molecular and fragment ions sputtered from Irganox 1010 under argon and bismuth cluster bombardment, complemented with MD simulations, offers a clearer microscopic view of the emission process.

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Investigating the Influence of the Substrate Temperature and the Organic Precursor on the Mechanical Properties of Low‐Pressure Plasma Polymer Films

Dantinne,

Vinx,

Leclère

et al. 2024

Plasma Processes & Polymers

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This work aims to investigate the influence of the substrate temperature on low‐pressure plasma polymerization processes. Emphasis is placed on the mechanical properties and growth mechanism of the plasma polymer films (PPFs). For this purpose, two precursors are considered, differing only by their unsaturation degree: 2‐propen‐1‐ol (CH2═CH–CH2–OH) and propan‐1‐ol (CH3–CH2–CH2–OH). Although propan‐1‐ol‐based PPFs behave like hard elastic solids, 2‐propen‐1‐ol‐based coatings evolve from a liquid film to an elastic solid on increasing the substrate temperature. This behavior is understood considering the evolution of the glass transition temperature of PPFs. The latter is correlated with the cross‐linking degree of the polymeric network governed by the energy density of bombarding ions on the growing film.

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Ex-situ SIMS characterization of plasma-deposited polystyrene near atmospheric pressure

Cited by 4 publications

References 48 publications

Structure of plasma‐deposited copolymer films prepared from acrylic acid and styrene: Part III sulfonation and electrochemical properties

Structure of plasma‐deposited copolymer films prepared from acrylic acid and styrene: Part III sulfonation and electrochemical properties

Mechanistic Insight into Gas Cluster-Induced Sputtering of Kilodalton Molecules Using Kinetic Energy Distribution Measurements

Investigating the Influence of the Substrate Temperature and the Organic Precursor on the Mechanical Properties of Low‐Pressure Plasma Polymer Films

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