Hydrophobic–Hydrophilic Character of Hexamethyldisiloxane Films Polymerized by Atmospheric Pressure Plasma Jet

Bashir, Muhammad; Bashir, Shazia

doi:10.1007/s11090-015-9623-z

Cited by 31 publications

(18 citation statements)

References 41 publications

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“…[31,32,50,51] Indeed, Vogelsang et al, [31] in their work on the deposition of C:F coatings using a RF capillary microplasma jet, reported of a maximum coating thickness of 7.8 mm after 3 min of deposition; Chen et al, [32] reporting on the deposition of pPAA coatings with an atmospheric pressure glow discharge plasma jet, observed a thickness of around 300 nm after a 10 min deposition time. Bashir et al, [50] in their work on the polymerization of hexamethyldisiloxane using a DBD plasma jet, reported about an average thickness of the deposited coating of 662 AE 33 nm after a treatment time of 3 min. Finally, Bosso et al [51] observed a maximum thickness of 300 nm for a pPAA coating deposited by means of DBD plasma jet (10 min deposition time).…”

Section: Resultsmentioning

confidence: 99%

Co‐Deposition of Plasma‐Polymerized Polyacrylic Acid and Silver Nanoparticles for the Production of Nanocomposite Coatings Using a Non‐Equilibrium Atmospheric Pressure Plasma Jet

Liguori

Traldi

Toccaceli

et al. 2015

Plasma Processes & Polymers

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A single step process for the deposition of nanocomposite coatings with silver nanoparticles (AgNPs) embedded in a plasma-polymerized polyacrylic acid (pPAA) matrix and performed using a non-equilibrium atmospheric pressure plasma jet is presented. Acrylic acid (AA) and AgNPs dispersed in ethanol (EtOH) are used as precursors and are separately injected in the plasma region directly; Ar is used as plasma gas and also as carrier gas for both precursors. Scanning electron microscopy (SEM) and ATR-FTIR analysis show the deposition of a micrometric pPAA coating on the polyethylene (PE) film used as substrate; AgNPs embedded in the polymeric matrix are visible in SEM pictures and their presence is confirmed by XPS and EDS analysis. X-ray photoelectron spectroscopy (XPS) also highlights a high retention of carboxylic groups in the pPAA chemical structure and the surface oxidation of AgNPs. Preliminary results of the antibacterial activity of the co-deposited coatings are presented.

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Section: Resultsmentioning

confidence: 99%

Co‐Deposition of Plasma‐Polymerized Polyacrylic Acid and Silver Nanoparticles for the Production of Nanocomposite Coatings Using a Non‐Equilibrium Atmospheric Pressure Plasma Jet

Liguori

Traldi

Toccaceli

et al. 2015

Plasma Processes & Polymers

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“…The contact angles of two test liquids diiodomethane and deionized (D.I.) water were measured for estimating the parameters of surface free energy …”

Section: Experimental Methodsmentioning

confidence: 99%

Deposition of polyacrylic acid films on PDMS substrate in dielectric barrier corona discharge at atmospheric pressure

Bashir

Khan

2018

Surface & Interface Analysis

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This paper reports on deposition of acrylic acid films polymerized by an efficient and cost‐effective technique of dielectric barrier corona discharge at atmospheric pressure. The liquid acrylic acid was vaporized and carried by argon gas into plasma to deposit polyacrylic acid films on polydimethylsiloxane substrate. A nonthermal corona discharge was generated in a pyrex flask using a steel tube‐to‐plate asymmetric electrode configuration. The plasma was excited using an in‐house developed power supply operating with continuous wave signals of 10‐kHz frequency. The emission spectra of plasma species were recorded to know their contribution during deposition process. The deposited surfaces were characterized using contact angle measurements, atomic force microscopy, Fourier transform infrared spectroscopy, X‐ray photoelectron spectroscopy and film thickness measurements. A maximum film growth rate of 363 nm/min was achieved under optimal condition of discharge. The results suggest that this plasma technique is capable of depositing organic coatings with a high concentration of carboxylic functional groups that could be potentially used for biomedical and microfluidic applications.

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“…The annealing is conducted using an oven with air as ambient gas. The annealing of one set of samples is done at 200°C for 2 h and another set at 500°C for [29,30] 928 ν a (Si─N─Si); stretching asymmetric mode [31,32] 1060 ν a (Si─O─Si), ν a (Si─O─C); stretching asymmetric mode [30,33] 1179 δ(N─H) bending mode [32] 1249 δ s (CH 3 ) in Si─CH 3 ; bending symmetric mode [29,33] 1402 δ a (CH 3 ); bending asymmetric mode [29] 2896 ν s (C─H) in CH 3 ; stretching symmetric mode [29,30] 2954 ν a (C─H) in CH 3 ; stretching asymmetric mode [29,30] 3381 ν(N─H); stretching mode [32] HAMDAN ET AL. 3 | RESULTS AND…”

Section: Methodsmentioning

confidence: 99%

Synthesis of SiOC:H nanoparticles by electrical discharge in hexamethyldisilazane and water

Hamdan

AbdulHalim

Anjum

et al. 2017

Plasma Processes & Polymers

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Nanoparticles have unique properties and are useful in many applications. Efficient synthesis of high yields of nanoparticles remains a challenge. Here, we synthesized SiOC:H, a low‐dielectric‐constant material, by electrical discharge at the interface of hexamethyldisilazane and water. The nanoparticle production rate of our technique was ∼17 mg per minute. We used Fourier transform infrared spectroscopy, scanning and transmission electron microscopy, and X‐ray photoemission spectroscopy to characterize the synthesized material. Heating the nanoparticles to 500 °C for 2 h released hydrogen from CHx groups and evaporated volatile compounds. Our method to produce high yields of low‐dielectric‐constant nanoparticles for microelectronic applications is promising.

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Hydrophobic–Hydrophilic Character of Hexamethyldisiloxane Films Polymerized by Atmospheric Pressure Plasma Jet

Cited by 31 publications

References 41 publications

Co‐Deposition of Plasma‐Polymerized Polyacrylic Acid and Silver Nanoparticles for the Production of Nanocomposite Coatings Using a Non‐Equilibrium Atmospheric Pressure Plasma Jet

Co‐Deposition of Plasma‐Polymerized Polyacrylic Acid and Silver Nanoparticles for the Production of Nanocomposite Coatings Using a Non‐Equilibrium Atmospheric Pressure Plasma Jet

Deposition of polyacrylic acid films on PDMS substrate in dielectric barrier corona discharge at atmospheric pressure

Synthesis of SiOC:H nanoparticles by electrical discharge in hexamethyldisilazane and water

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