The kinetics and mechanism of the 10 kHz ac glow discharge polymerization of 2-vinylpyridine (2-VP) are discussed. The overall rate expression for the formation of polymer on the electrode surfaces is given by R = (2270 j(P/sub 2-VP/ + 94))/T, where R is ...
National Technical Information Service (NTIS)
The polymerization of 2-vinylpyridine in an ac electric discharged plasma process produced highly crosslinked, pinhole-free polymer films. Because of the good dielectric properties, glow discharge polymerized films were formed to be used as thin-film insu...
... Accession Number : ADD438442. Title : Plasma Polymerization and Plasma Treatment,. Corporate Author : AMERICAN ...
DTIC Science & Technology
The polymerization of 2-vinylpyridine in an ac electric discharged plasma process produced highly crosslinked, pinhole-free polymer films. Because of the good dielectric properties, glow discharge polymerized films were formed to be used as thin-film insulators and dielectrics. The significance of glow discharge ...
Energy Citations Database
... Accession Number : ADA305199. Title : Plasma Polymerization and Plasma Treatment,. Corporate Author : MISSOURI UNIV ...
Plasma initiated polymerization is discussed. Topics include: polymerization of a vinyl monomer, solid phase polymerization, and inorganic ring compound polymers.
Micro scale patterning of bioactive surfaces is desirable for numerous biochip applications. Polyethyleneoxide-like (PEO-like) coating with non-fouling functionality has been deposited using low frequency AC plasma polymerization. The non-fouling properties of the coating were tested with human cells (HeLa) and fluorescence labeled ...
PubMed
These conference proceedings contain abstracts for 20 papers. The topics covered include various aspects of plasma polymerization and plasma treatments such as the application of plasma polymerized film to electron beam lithography; characterization of plasma-polymerized ...
... Accession Number : AD0778682. Title : The Role of Halogens in the Plasma Polymerization of Hydrocarbons. Descriptive Note : Technical rept.,. ...
... Accession Number : AD0706609. Title : RARE GAS PLASMA POLYMERIZATION OF ORGANIC COMPOUNDS AT -196 CI BENZENE,. ...
... AND PLASMA SPRAYED POLYMERIC PROTECTIVE COATINGS. ... and polyester coatings were measured ... and reproducibility of coating properties. ...
... THE STRUCTURE AND DIELECTRIC PROPERTIES OF PLASMA- POLYMERIZED BENZENE AND OFCB THIN FILMS (PREPRINT) ...
... Accession Number : ADD442644. Title : Modification of Polymer Surfaces by Plasma Treatment and Plasma Polymerization,. ...
... Paper and Honorable Mention Awards, ACS Rubber ... ACS Award in Applied Polymer Science (1994 ... Fellow of American Physical Society, New York ...
... ethylene and butadiene, then by propylene, cis-2-butene and isobutylene. The saturated alkanes: methane, ethane, and propane polymerize most ...
... Accession Number : AD0606014. Title : THE LANGEVIN EQUATION AND THE AC CONDUCTIVITY OF NON-MAXWELLIAN PLASMAS,. ...
... Title : High Frequency Properties of Electron Waveguides, AC- Admittance, Scattering Parameters, Plasma Oscillations. ...
... Abstract : An attempt was made to demonstrate the dynamic AC stabilization of the magnetic confinement of a plasma column in a theta-pinch ...
... Descriptors : *POLYMERIC FILMS, *PYRROLES, *CAPACITANCE, *THIN FILMS, ALTERNATING CURRENT, MICROSCOPY, HIGH ENERGY ...
A polymeric halocarbon is used as an etch barrier for plasma etching in a process to make high resolution, high aspect ratio polymer patterns.
... 11. TITLE (Include Security Classification) Characterization of Plasma Polymerized Hydrocarbons Using CP-MAS Carbon-13 NMR 12. ...
Abstracts of the conference papers are presented. Topics covered include catalysis, surface dynamics, plasma polymerized thin films and surface analysis. 25 abstracts are included. (GHT)
... Accession Number : ADA475005. Title : The Structure and Dielectric Properties of Plasma-Polymerized Benzene and OFCB Thin Films (Preprint). ...
... of the fiber surface. C/G fiber surface was altered by plasma polymerization of acrylonitrile. Modified surface was characterized ...
... were investigated. Here the radiofrequency glow discharge method was used as the method of generating plasma. We ...
The tearing mode stability of the radial profiles of current density resulting from the skin effect accompanying AC modulation is calculated using a computer program. An AC component was superposed on the plasma current and a computer program was designed...
The microwave plasmas of gaseous mixtures of methane-argon and propylene argon were analyzed along the flow stream by the elctrical double floating probe system, optical spectroscopy, and quadrupole mass spectrometry. The plasma variables measured and considered were current density, electric field strength, electron temperature, positive ion and electron ...
Non-thermal plasma at atmospheric pressure is an inherently unstable object. Nature of discharge plasma instabilities and conditions for observation of uniform non-thermal plasma at atmospheric pressure in different environments will be discussed. Various discharge techniques have been developed, which could support uniform non-thermal ...
NASA Astrophysics Data System (ADS)
The ion-molecule and the radical-molecule mechanisms are responsible for the dissociation of hydrocarbons, and chlorosilane monomers and the formation of polymerized species, respectively, in the plasma state of a RF discharge. In the plasma, of a mixture...
The purpose of the research was to prepare protective and anti-reflection coatings for infrared laser windows by depositing a thin film from the hydrocarbon plasma. The introduction section outlines state-of-the-art knowledge of plasma polymerization and ...
As a preliminary step toward the study of electrical and aging properties of thin-film capacitors made from plasma polymerized 2-vinylpyridine thin films, the chemical structure of these films deposited under a variety of plasma reactor conditions was inv...
Silica-alumina cracking catalyst was plasma sprayed onto a metal substrate to attempt to develop a unique catalyst support form for ethylene polymerization. Seven plasma spraying parameters were optimized using a sequential analysis conducted on an accumu...
Polymer-like thin films have been deposited on glass, silicon, and copper substrates at a room temperature to 100 �C by the plasma-enhanced chemical vapor deposition method using cyclohexane (C6H12) as a precursor for analysis of these substrates electrochemical and optical characteristics. Cyclohexane was utilized as an organic precursor and hydrogen and Ar (argon) were ...
The phenomena of electrical conductivity and diffusion in plasmas is analyzed. Expressions are derived for the DC and AC conductivity of anisotropic plasma, as well as of an anisotropic magnetoplasma, using the macroscopic equations pertinent to the cold ...
Accomplishments during this past grant period span three areas of research. (1) Following models the authors and others have proposed, they have synthesized numerous new materials to test the generality of magnetism in molecular/polymeric systems. This ac...
A quasi-steady-state alternating current (ac) plasma operation was achieved successfully on the HT-7 superconducting tokamak. It is found in ac plasmas that the particle confinement time of positive current plasma (?p ~ 17 ms) is lower than that of negative current (?p ~ 31 ms) ...
... comparison is made between two electrical techniques for studying the deterioration of polymer-coated metals. AC impedance measurements and ...
BackgroundThe mechanisms behind formation and filling of intracranial arachnoid cysts (AC) are poorly understood. The aim of this study was to evaluate AC fluid by proteomics to gain further knowledge about ACs. Two goals were set: 1) Comparison of AC fluid from individual patients to determine whether or not ...
PubMed Central
A polythelene glycol (PEG) polymer was synthesized using a dip coating procedure on 316L stainless steel (SS) substrate pre coated by radio frequency RF inductively coupled plasma polymerization with di (ethylene glycol) vinyl ether (EO2V) monomer that was used as a primer coat. The primer and PEG composite film was studied with profilometer, visible-light ...
A polyethylene glycol (PEG) polymer was synthesized using a dip coating procedure on 316L stainless steel (SS) substrate pre-coated with a primer that consisted of radio frequency RF inductively coupled plasma-polymerized di (ethylene glycol) vinyl ether (EO2V). The primer and PEG composite film was studied with profilometer, optical microscope, scanning electron microscope ...
Plasma polymerization gains increasing interest for the deposition of films with functional properties suitable for a wide range of modern applications on account of its advantageous features. In this study, carbon dioxide (CO2) was chosen as carrier gas at flow rates of 30 and 60 sccm, respectively and styrene vapor was used as the monomer to prepare ...
-3]. The atmospheric-pressure discharge plasmas afford new parameter regions, for example, (i) high density, (iiauthor's e-mail: hirai@plasma.ecei.tohoku.ac.jp Development of a Plasma Source Using Atmospheric, 997-8511, Japan (Received 22 April 2005 / Accepted 7 May 2005) A novel plasma source of atmospheric
E-print Network
The present invention relates to a method of recycling polymeric waste products into monomers and high value forms of carbon by pyrolytic conversion using an induction coupled RF plasma heated reactor.
DOEpatents
Silicon has often been considered as an attractive candidate for applications in photoelectrochemical devices. Unfortunately it is unstable in most electrolytes of interest. We demonstrate that plasma polymerized hexamethyldisiloxane coatings on silicon p...
Benzene in a frozen solid state at -196C has been polymerized by a rare gas radiofrequency plasma of helium. The resulting polymer shows no sign of aromaticity. Infrared spectra suggest the polymer is a branched, aliphatic hydrocarbon polymer with some un...
A tandem plasma polymerization apparatus for continuous coating of hollow fibers has been built. The apparatus allows two treatments of a moving substrate to be carried out in successive chambers with no cross-contamination. The apparatus employs internal...
Plasma polymerized coatings can possibly be used to provide protection for moisture-sensitive substrates such as lithium hydride and depleted uranium. Paraxylene, benzene, perfluoro-2-butene, tetrahydrofuran, and other monomers have been used to deposit p...
Plasma-polymerized vinyl trimethoxy silane films were deposited on transparent polycarbonate substrates. The adherent, clear films protected the substrates from abrasion and also served as antireflection coatings. Post-treatment of the vinyl trimethoxy si...
Improvement of Strength Characteristics of Aerospace Fiber Reinforced Composite Materials using Atmospheric Pressure Plasma-Graft Polymerization Treatment
Plasma and flame-sprayed polymeric protective coatings in unpigmented and pigmented forms on stainless steel and titanium substrates have been prepared. Coatings have been obtained from polymers which are insoluble and infusible and which could not be pre...
A comparative study was made of the surface recession (etching) of thin films of plasma polymerized tetrafluoro ethylene (PPTFE), polytetrafluoro ethylene (PTFE), and ion-beam sputter deposited polytetrafluoro ethylene (SPTFE) exposed to ground-state atom...
An experiment was performed on the pulsator Tokamak at Garching in which an ac component was superposed on the plasma current. To interpret and plan these experiments, a computer program was developed to calculate the current distributions accompanying the ac modulation taking into account the skin effect. The experiments show that ...
... Abstract : An approach towards modification of carbon ... the conventional surface treatment in that it ... polymerization of monomeric gases can generate ...
