Properties and reactivity of polyoxazoline plasma polymer films

2015 ◽  
Vol 3 (30) ◽  
pp. 6327-6337 ◽  
Author(s):  
Melanie N. Macgregor-Ramiasa ◽  
Alex A. Cavallaro ◽  
Krasimir Vasilev
Keyword(s):  
Polymer Films ◽  
Plasma Deposition ◽  
Covalent Binding ◽  
Deposition Process ◽  
Single Step ◽  
Plasma Polymer ◽  
Partial Retention ◽  
Deposition Conditions

Nanoscale polyoxazoline coatings generated via a single step plasma deposition process are investigated. The complex functionality of the film can be controlled by varying the deposition conditions. Partial retention of the oxazoline ring facilitates covalent binding of nanoparticles and biomolecules.

Atmospheric Plasma Deposition Process: A Versatile Tool for the Design of Tunable Siloxanes-Based Plasma Polymer Films

2011 ◽  
Vol 8 (10) ◽  
pp. 895-903 ◽  
Author(s):  
Julien Petersen ◽  
Rony Bechara ◽  
Julien Bardon ◽  
Thierry Fouquet ◽  
Fabio Ziarelli ◽  
...  
Keyword(s):  
Polymer Films ◽  
Plasma Deposition ◽  
Deposition Process ◽  
Atmospheric Plasma ◽  
Plasma Polymer ◽  
Versatile Tool

scholarly journals Optical Properties of Oxidized Plasma-Polymerized Organosilicones and Their Correlation with Mechanical and Chemical Parameters

Materials ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 539 ◽  
Author(s):  
Bozena Cechalova ◽  
Martin Branecky ◽  
Petr Klapetek ◽  
Vladimir Cech
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Band Gap ◽  
Polymer Films ◽  
Polymer Network ◽  
Plasma Polymer ◽  
Oxygen Mixture ◽  
Strong Positive Correlation ◽  
Effective Power ◽  
Deposition Conditions

Pure tetravinylsilane and its oxygen mixture were used to deposit oxidized plasma polymer films at various effective power (0.1–10 W) and various oxygen fractions (0–0.71) using RF pulsed plasma. The optical properties (refractive index, extinction coefficient, band gap) of the deposited films were investigated by spectroscopic ellipsometry (230–830 nm) using an optical model and Tauc‒Lorentz parametrization. Analyses of chemical and mechanical properties of films allowed for the interpretation of changes in optical properties with deposition conditions. The refractive index was revealed to increase with enhanced effective power due to the increased crosslinking of the plasma polymer network but decreased when increasing the oxygen fraction due to the decrease of polymer crosslinking as the number of carbon bonds in the plasma polymer network was eliminated. A very strong positive correlation was found between the Young’s modulus and the refractive index for oxidized plasma polymer films. The optical properties of films correlated with their chemical properties for the specific deposition conditions used in this study. The band gap (1.9–2.9 eV) was assumed to be widened due to the increased concentration of vinyl groups in oxidized plasma polymer films.

Influence of Deposition Conditions on Structure and Aging of C:H:O Plasma Polymer Films Prepared from Acetone/CO2Mixtures

2014 ◽  
Vol 11 (5) ◽  
pp. 496-508 ◽  
Author(s):  
Martin Drabik ◽  
Jaroslav Kousal ◽  
Coralie Celma ◽  
Patrick Rupper ◽  
Hynek Biederman ◽  
...  
Keyword(s):  
Polymer Films ◽  
Plasma Polymer ◽  
Deposition Conditions

Direct covalent attachment of silver nanoparticles on radical-rich plasma polymer films for antibacterial applications

2018 ◽  
Vol 6 (37) ◽  
pp. 5845-5853 ◽  
Author(s):  
Behnam Akhavan ◽  
Sadra Bakhshandeh ◽  
Hamed Najafi-Ashtiani ◽  
Ad C. Fluit ◽  
Edwin Boel ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Polymer Films ◽  
Plasma Polymerization ◽  
Covalent Immobilization ◽  
Single Step ◽  
Plasma Polymer ◽  
Covalent Attachment

Ion-assisted plasma polymerization for single-step, covalent immobilization of silver nanoparticles on surfaces.

Diagnostics of VHF Plasma Deposition

1992 ◽  
Vol 258 ◽  
Author(s):  
J. Kuske ◽  
U. Stephan ◽  
K. Schade ◽  
W. Fuhs
Keyword(s):  
High Frequency ◽  
Plasma Deposition ◽  
Deposition Process ◽  
Electrical Network ◽  
Very High Frequency ◽  
Electrical Connection ◽  
Reactor Construction ◽  
Parallel Plate Reactor ◽  
Very High ◽  
Deposition Conditions

ABSTRACTThe use of Very High Frequency (VHF) glow discharge for the deposition of amorphous silicon films is one approach to influencing the deposition conditions.For the experiments a capacitatively-coupled parallel plate reactor with two aluminium electrodes of 125 mm in diameter is used. The VHF is generated by means of an all-solid state amplifier which has a frequency response ranging from 250 kHz to 150 MHz. Experiments with an nitrogen discharge within the range from 5 to 150 MHz are an principle in agreement with the results in the literature. The results show, that the frequency dependence of the discharge strongly depends on the design and the external electrical connection of the VHF-reactor. In the examined range of frequency resonances appear, which are probably responsible for the maximum of the deposition rate. These resonances are not essentially resultant from changes in the physics of the discharge but a result of the reactor construction and the external electrical connection. Possibilities which influence this frequencies of resonance will be discussed.Results for an electrical network model will be discussed in the comparison with different reactors and the optimization of the behaviour of the deposition process.

scholarly journals Perspective on Plasma Polymers for Applied Biomaterials Nanoengineering and the Recent Rise of Oxazolines

Materials ◽  
2019 ◽  
Vol 12 (1) ◽  
pp. 191 ◽  
Author(s):  
Melanie Macgregor ◽  
Krasimir Vasilev
Keyword(s):  
Plasma Deposition ◽  
Polymeric Materials ◽  
Organic Thin Films ◽  
Deposition Process ◽  
Green Energy ◽  
Plasma Polymer ◽  
Complex Nature ◽  
Plasma Polymers ◽  
Fundamental Research ◽  
Polymer Research

Plasma polymers are unconventional organic thin films which only partially share the properties traditionally attributed to polymeric materials. For instance, they do not consist of repeating monomer units but rather present a highly crosslinked structure resembling the chemistry of the precursor used for deposition. Due to the complex nature of the deposition process, plasma polymers have historically been produced with little control over the chemistry of the plasma phase which is still poorly understood. Yet, plasma polymer research is thriving, in par with the commercialisation of innumerable products using this technology, in fields ranging from biomedical to green energy industries. Here, we briefly summarise the principles at the basis of plasma deposition and highlight recent progress made in understanding the unique chemistry and reactivity of these films. We then demonstrate how carefully designed plasma polymer films can serve the purpose of fundamental research and biomedical applications. We finish the review with a focus on a relatively new class of plasma polymers which are derived from oxazoline-based precursors. This type of coating has attracted significant attention recently due to its unique properties.

Growth Mechanism and Film Properties in Pulsed Laser-Plasma Deposition

1991 ◽  
Vol 236 ◽  
Author(s):  
S. Metev ◽  
K. Meteva
Keyword(s):  
Laser Plasma ◽  
Growth Process ◽  
Plasma Deposition ◽  
Pulsed Laser ◽  
Deposition Process ◽  
Experimental Investigations ◽  
Direct Relation ◽  
Film Properties ◽  
Experimental Conditions ◽  
Laser Flux

AbstractIn the paper the results of a theoretical investigation of the growth process of laser-plasma deposited thin films are discussed. A kinetic approach has been used to establish direct relation between experimental conditions (laser flux density, substrate temperature) and film properties (thickness, structure). The results of some experimental investigations of the deposition process are presented confirming the general conclusions of the developed theoretical model.

Sign in / Sign up

Export Citation Format

Share Document