Plasma Processes and Polymers

Cover image for Vol. 9 Issue 10

October 2012

Volume 9, Issue 10

Pages 943–1027

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Contents
    5. Full Papers
    1. Plasma Process. Polym. 10/2012

      Tariq Mehmood, Xiujuan J. Dai, Akif Kaynak and Abbas Kouzani

      Article first published online: 11 OCT 2012 | DOI: 10.1002/ppap.201290028

      Thumbnail image of graphical abstract

      Cover: Electrical conductivity and interfacial bonding of polypyrrole coatings on polyester were significantly improved by plasma treatment using Ar, N2 or O2 gases. The highest level of COOH groups and most uniform nano-scale surface roughness were achieved by O2 plasma treatment that gave the highest interfacial bonding and highest conductivity. After 2000 abrasion cycles the O2 plasma treated sample had lost only ∼7% conductivity while the control had lost ∼36%. Further details can be found in the article by J. Dai et. al. on page 1006.

  2. Masthead

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Contents
    5. Full Papers
    1. Plasma Process. Polym. 10/2012

      Article first published online: 11 OCT 2012 | DOI: 10.1002/ppap.201290029

  3. Contents

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Contents
    5. Full Papers
    1. Plasma Process. Polym. 10/2012 (pages 943–946)

      Article first published online: 11 OCT 2012 | DOI: 10.1002/ppap.201290027

  4. Full Papers

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Contents
    5. Full Papers
    1. Nano-texturing of Transparent Polymers with Plasma Etching: Tailoring Topography for a Low Reflectivity (pages 947–954)

      Rosa Di Mundo, Mariagrazia Troia, Fabio Palumbo, Massimo Trotta and Riccardo d'Agostino

      Article first published online: 27 JUN 2012 | DOI: 10.1002/ppap.201200041

      Thumbnail image of graphical abstract

      Nano-structures with very different shape and size are obtained on transparent polymers with plasma etching if CF4 or O2 feed is utilized. Thus the gas feed along with the treatment duration have been investigated as key parameters to better understand the behavior of these nanotextured surfaces in visible and near-infrared light reflection.

    2. In Situ Thermometry in Noble Gas Dielectric Barrier Discharges at Atmospheric Pressure (pages 955–967)

      Michael R. Wertheimer, Bachir Saoudi, Meenu Ahlawat and Raman Kashyap

      Article first published online: 18 JUN 2012 | DOI: 10.1002/ppap.201200028

      Thumbnail image of graphical abstract

      Atmospheric pressure (AP) dielectric barrier discharges (DBD) are frequently of interest for treating delicate substrates such as polymers or biological materials. In spite of its capital importance, thermometry in AP plasmas is subject to much uncertainty. We report temperature measurements in He, Ne, and Ar using sensitive, accurate fiber-optic (FBG) instrumentation that is a priori immune toward high voltages and high-frequency electromagnetic fields generally encountered in plasma environments.

    3. Silicon Patterning Using Self-assembled PS-b-PAA Diblock Copolymer Masks for Black Silicon Fabrication via Plasma Etching (pages 968–974)

      Xin Zhang, Andrei B. Sushkov, Christopher J. Metting, Sean Fackler, H. Dennis Drew and R. M. Briber

      Article first published online: 3 JUL 2012 | DOI: 10.1002/ppap.201100198

      Thumbnail image of graphical abstract

      Phase separated PS-b-PAA diblock copolymers are employed as dry etch masks for the fabrication of black silicon metamaterials. The process provides a tunable, cheap, and safe method for creating low reflectivity surfaces with high reproducibility. Optical properties for a variety of feature profiles are evaluated and optimized.

    4. Ion-Beam Induced Surface Roughening of Poly-(methyl methacrylate) (PMMA) Tuned by a Mixture of Ar and O2 Ions (pages 975–983)

      Wei Dai, Tae-Jun Ko, Kyu Hwan Oh, Kwang-Ryeol Lee and Myoung-Woon Moon

      Article first published online: 11 OCT 2012 | DOI: 10.1002/ppap.201200037

      Thumbnail image of graphical abstract

      Surfaces of PMMA are modified using ions from an anode-layer ion-beam source with various O2/Ar source gas ratios. O2 ion beam is found lead mainly to local cross-linking/aggregation, while the Ar ion beams favor the formation of an a-C:H layer with reduced roughness. When O2/Ar ions are used, the counter influences of local aggregation and smoothness on the PMMA surfaces result in tunable features evolving from granular to crater-like.

    5. Plasma Polymerization of Acrylic Acid by Atmospheric Pressure Nitrogen Plasma Jet for Biomedical Applications (pages 984–993)

      Olivier Carton, Dhia Ben Salem, Sudhir Bhatt, Jérôme Pulpytel and Farzaneh Arefi-Khonsari

      Article first published online: 6 JUL 2012 | DOI: 10.1002/ppap.201200044

      Thumbnail image of graphical abstract

      An original technique has been used to grow polymerized acrylic acid thin films for biomedical application: an atmospheric pressure nitrogen plasma jet. Human ovarian carcinoma cells have been used for cellular adhesion tests and a good proliferation could be obtained, depending on the composition and on the stability of the coatings.

    6. An Investigation into the Dominant Reactions for Ethylene Destruction in Non-Thermal Atmospheric Plasmas (pages 994–1000)

      Robby Aerts, Xin Tu, Christophe De Bie, J. Christopher Whitehead and Annemie Bogaerts

      Article first published online: 30 JUL 2012 | DOI: 10.1002/ppap.201100168

      Thumbnail image of graphical abstract

      A zero dimensional kinetic model for the destruction of ethylene in low temperature plasmas, is developed. The model describes the destruction in dry air at different concentrations of ethylene and at different values of specific energy deposition. The relative contributions for the dominant species and reactions are calculated and presented in the current pulse and the afterglow region of the discharge.

    7. Guiding of Reactive Plasma Species by Micro-Channels (pages 1001–1005)

      Yang-Fang Li, Julia L. Zimmermann, Tobias Klämpfl and Gregor E. Morfill

      Article first published online: 24 JUL 2012 | DOI: 10.1002/ppap.201100182

      Thumbnail image of graphical abstract

      The micro-channel plate is found to be able to enhance the bactericidal effect of the surface micro-discharge plasma. The diffusion of the reactive plasma species is guided by the micro-channels. The bactericidal effect is then collimated by the “channeling” effect.

    8. Improved Bonding and Conductivity of Polypyrrole on Polyester by Gaseous Plasma Treatment (pages 1006–1014)

      Tariq Mehmood, Xiujuan J. Dai, Akif Kaynak and Abbas Kouzani

      Article first published online: 11 SEP 2012 | DOI: 10.1002/ppap.201200046

      Thumbnail image of graphical abstract

      Electrical conductivity and interfacial bonding of polypyrrole coatings on polyester were significantly improved by plasma treatment using Ar, N2 or O2 gases. The highest level of COOH groups and most uniform nano-scale surface roughness were achieved by O2 plasma treatment that gave the highest interfacial bonding and highest conductivity. After 2000 abrasion cycles the O2 plasma treated sample had lost only ∼7% conductivity while the control had lost ∼36%.

    9. Helium/H2O2 Atmospheric Pressure Plasma-Assisted Electrosurgery (pages 1015–1019)

      Myeong Yeol Choi, Il Gyo Koo, Paul Y. Kim, Sung Kil Kang, Yoon-Sun Kim, Jae-Chul Jung and George J. Collins

      Article first published online: 24 JUL 2012 | DOI: 10.1002/ppap.201200003

      Thumbnail image of graphical abstract

      Electrosurgery (ES) is combined with RF plasma discharge to enhance tissue ablation. ES is a widely used tool for thermally vaporizing or ablating tissue based on Joule heating of intracellular water by electrical current. Helium/H2O2 plasma in contact mode is shown to increase tissue removal with less current flow to the tissue compared to monopolar ES alone.

    10. Interaction of Argon, Hydrogen and Oxygen Plasma Early Afterglow with Polyvinyl Chloride (PVC) Materials (pages 1020–1027)

      Zlatko Kregar, Marijan Bišćan, Slobodan Milošević, Miran Mozetič and Alenka Vesel

      Article first published online: 24 JUL 2012 | DOI: 10.1002/ppap.201200062

      Thumbnail image of graphical abstract

      In this work we are treating polyvinyl chloride with three different plasmas—argon, hydrogen and oxygen. Main products of plasma interaction with PVC are monitored real time by optical emission spectroscopy. The results indicate that Ar and H2 plasma offer possibilities for plasma sterilization, while oxygen plasma interacts too intensively.

SEARCH

SEARCH BY CITATION