TITLE

Roughness of molecularly thin perfluoropolyether polymer films

AUTHOR(S)
Toney, Michael F.; Mate, C. Mathew; Leach, K. Amanda
PUB. DATE
November 2000
SOURCE
Applied Physics Letters;11/13/2000, Vol. 77 Issue 20
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
X-ray reflectivity has been used to measure the roughness of perfluoropolyether (PFPE) polymer films on silicon substrates and carbon overcoats. For PFPE on smooth silicon, we find that the rms roughness of the PFPE-air interface increases slowly from about 2 to 4 Å as PFPE thickness increases from 5 to 33 Å. This increase is consistent with capillary waves roughening the polymer film, but inconsistent with current theories for the dewetting of polymer films. For PFPE on the rougher surface of amorphous hydrogenated carbon, we find that the PFPE polymer smoothes the surface with the rms roughness decreasing from 9 to 4 Å. We also discuss the implications of these results on the limits of disk drive technology. © 2000 American Institute of Physics.
ACCESSION #
4413842

 

Related Articles

  • FKMs for extrusion of thin wall veneers and tubes for fuel hose applications. Grant, Christopher; Stevens, Ronald; Bowers, Stephen; Tang, Phan // Rubber World;May2006, Vol. 234 Issue 2, p25 

    The article describes the processing performance of fluoroelastomers for fuel hose applications in the U.S. Fluoroelastomers are specified for their excellent physical properties, compression set and heat resistance. Fluoroplastics like ETFE and FEP give the best permeation resistance. However,...

  • A Comparison of High-Purity Fluoropolymer.Fitting Technologies.  // Solid State Technology;Jan2013, Vol. 56 Issue 1, p24 

    The article presents information on fluoropolymer tube fittings. A recent study compared commercially available nonwetted insert, flare, and wetted insert style fittings. It is stated that one should consider different performance characteristics when selecting a fluoropolymer fitting design to...

  • A [sup 19] F nuclear magnetic resonance study of the conjugate Br�nsted�Lewis superacid HSO[sub 3] F�SbF[sub 5] . Part II. K�hn-Velten, Jobst; Bodenbinder, Matthias; Br�chler, Raimund; H�gele, Gerhard; Aubke, Friedhelm // Canadian Journal of Chemistry;Sep2002, Vol. 80 Issue 9, p1265 

    Solutions of SbF[sub 5] in HSO[sub 3] F with x[sub SbF5] = 0.012 to 0.405 are studied by 500 MHz [sup 1] H NMR (299 K) and 471 MHz [sup 19] F NMR (213�250 K), using NMR tubes fitted with fluoropolymer lining. The initial process during dissolution is the fast solvolysis of monomeric SbF[sub...

  • Novel Fluoropolymer-Based Emulsion Technology: Striving For "Green" Coatings. Gupta, Ravi; Wood, Kurt // Paint & Coatings Industry;Jul2007, Vol. 23 Issue 7, p70 

    The article discusses novel waterborne systems based on polyvinylidene fluoride (PVDF) polymers and copolymers. It reviews the morphology of the fluoropolymer-based waterborne materials, along with a justification for the chosen structure. It presents data that demonstrate the influence of latex...

  • Synthesis and Opto-electrical Properties of Stellar Polyfluorene Derivatives Containing Polyhedral Oligomeric Silsesquioxanes as the Center Core. Chen, Kuei-Bai; Chen, Hung-Yi; Yang, Sheng-Hsiung; Hsu, Chain-Shu // Journal of Polymer Research;Sep2006, Vol. 13 Issue 3, p237 

    Three polyfluorene derivatives ( P1� P3) emitting blue, green and red light were prepared via a Suzuki coupling method. Polyhedral oligomeric silsesquioxanes (POSS) were integrated into the center core of the derivatives to create stellar light-emitting polymers ( POSS-P1� POSS-P3)....

  • Neutron Lifetime Experiment Based on an Accordion-Like UCN Storage Volume Coated With "Low Temperature Fomblin.". Yerozolimsky, B.; Steyerl, A.; Kwon, O.; Luschikov, V.; Strelkov, A.; Geltenbort, P.; Achiwa, N.; Pichlmaier, A.; Fierlinger, P. // Journal of Research of the National Institute of Standards & Tec;Jul/Aug2005, Vol. 110 Issue 4, p351 

    A new type of per-fluorinated polymer, "Low Temperature Fomblin," has been tested as a wall coating in an ultracold neutron (UCN) storage experiment using a gravitational storage system. The data show a UCN reflection loss coefficient η as low as ≈ 5 x10 -6 in the temperature range 105...

  • Low-noise wideband ultrasound detection using polymer microring resonators. Sheng-Wen Huang; Sung-Liang Chen; Tao Ling; Maxwell, Adam; O’Donnell, Matthew; Guo, L. Jay; Ashkenazi, Shai // Applied Physics Letters;5/12/2008, Vol. 92 Issue 19, p193904 

    Polymer microring resonators for low-noise, wideband ultrasound detection are presented. Using a nanoimprinting technique, we fabricated polymer microring resonators with a quality factor of 6000 resulting in high sensitivity to ultrasound. A noise-equivalent pressure of 0.23 kPa over...

  • Dielectric behavior of electroactive fluorinate-based polymers under dc electric field. Yu, Zhi; Ang, Chen // Applied Physics Letters;10/25/2004, Vol. 85 Issue 17, p3827 

    The dielectric behavior in fluorinate-based polymers has been studied under a dc electric field of 0–72 V/μm. The two overlapped anomalies Modes A (A′) and B in the dielectric constant are clearly revealed under dc bias. Mode A′ in the terpolymer behaves as a ferroelectric...

  • Electrical breakdown and ultrahigh electrical energy density in poly(vinylidene fluoride-hexafluoropropylene) copolymer. Zhou, Xin; Zhao, Xuanhe; Suo, Zhigang; Zou, Chen; Runt, James; Liu, Sheng; Zhang, Shihai; Zhang, Q. M. // Applied Physics Letters;4/20/2009, Vol. 94 Issue 16, p162901 

    This paper investigates the electrical breakdown of a polar fluoropolymer, poly(vinylidene fluoride-hexafluoropropylene) which exhibits an exceptionally high discharged electrical energy density (>25 J/cm3). It is shown that above room temperature, the breakdown strength decreases with...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics