TITLE

Transformations of styrene at high pressure

AUTHOR(S)
Gourdain, D.; Chervin, J. C.; Pruzan, Ph.
PUB. DATE
November 1996
SOURCE
Journal of Chemical Physics;11/22/1996, Vol. 105 Issue 20, p9040
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Phase transformations of styrene (C8H8) at room temperature and up to 32 GPa have been studied by visual observations, Fourier transform infrared spectroscopy, and Raman scattering. At room temperature, styrene freezes at 0.3 GPa and undergoes a solid-to-solid transformation around 3.5 GPa. Around 15 GPa the extent of the reaction monostyrene→polystyrene becomes significant. At 32 GPa the reaction is nearly completed and, contrary to the general trend, the phenyl group is still stable at this pressure. This uncommon behavior is very likely correlated with the amorphous character of the polystyrene formed under pressure. © 1996 American Institute of Physics.
ACCESSION #
7639878

 

Related Articles

  • Ultrahigh pressures. Jayaraman, A. // Review of Scientific Instruments;Jun86, Vol. 57 Issue 6, p1013 

    This article reviews mainly the use of the diamond anvil cell (DAC) for ultrahigh-pressure generation (a few hundred GPa) and the various techniques employed in studying the high-pressure behavior of solids. A brief historical introduction to devices used in the prediamond-anvil era is presented...

  • My Goldfish Is a Submarine. D'Alto, Nick // Odyssey;Nov2003, Vol. 12 Issue 8, p25 

    Explains how to navigate under water using pressure and then pilot one's own robotic diver. INSET: Buoyant Force -- the Naked Truth.

  • Current snap-back and negative differential resistance in layered PnvN structures. Trivedi, Malay; Shenai, Krishna // Journal of Applied Physics;8/15/1998, Vol. 84 Issue 4, p2091 

    Presents information on the anomalous snap-back relating to the I-V characteristics of high power recifiers having a buffer layer. Location of this buffer layer; Identification of conditions of these layers; Emerging of localized lifetime control; Demonstration of proton irradiation.

  • ZnGeP2 grown by the liquid encapsulated Czochralski method. Hobgood, H. M.; Henningsen, T.; Thomas, R. N.; Hopkins, R. H.; Ohmer, M. C.; Mitchel, W. C.; Fischer, D. W.; Hegde, S. M.; Hopkins, F. K. // Journal of Applied Physics;4/15/1993, Vol. 73 Issue 8, p4030 

    Presents information on a study that investigated the high pressure liquid encapsulated Czochralski process as an alternative growth method for ZnGeP[sub2]. Methodology of the study; Results and discussion on the study.

  • Origins of the Diamond Anvil Cell. Ferraro, John R.; Van Valkenburg, Eric // Spectroscopy;Nov1999, Vol. 14 Issue 11, p19 

    Discusses the design and variations of the diamond anvil cell (DAC), which is a pressure cell incorporated with diamonds. Methods of calibrating the pressure incurred in a DAC; Main areas of high-pressure research which have been examined using the DAC.

  • Phase behavior of protoenstatite at high pressure studied by atomistic simulations. Jahn, Sandro; Martoňák, Roman // American Mineralogist;Jul2009, Vol. 94 Issue 7, p950 

    Structural phase transformations of MgSiO3 protoenstatite at high pressures are studied by atomic scale simulation techniques. Molecular-dynamics simulations and electronic-structure calculations reveal two metastable polymorphs with space groups P21cn and Pbcn, respectively. They are related to...

  • Elimination of pressure-induced fluorescence in diamond anvils. Eggert, Jon H.; Goettel, Kenneth A.; Silvera, Isaac F. // Applied Physics Letters;12/19/1988, Vol. 53 Issue 25, p2489 

    At pressures above one megabar (100 GPa) in high-pressure diamond anvil cell experiments the ruby fluorescence signal needed for pressure calibration is increasingly difficult to measure. A primary cause of this difficulty is the presence of an intense pressure-induced diamond fluorescence. We...

  • New dielectric method for the measurement of physical adsorption of gases at high pressure. Bose, T. K.; Chahine, R.; Marchildon, L.; St-Arnaud, J. M. // Review of Scientific Instruments;Dec1987, Vol. 58 Issue 12, p2279 

    A new method for the measurement of gas adsorption at high pressure is described in detail. The method is based on dielectric virial coefficients and it takes advantage of the dielectric technique for the accurate measurement of the compressibility factor of gases at high pressure. The method is...

  • High-pressure operation of a beam diode for relativistic electron beams. Matsuzawa, Hidenori; Akitsu, Tetsuya // Journal of Applied Physics;5/1/1988, Vol. 63 Issue 9, p4388 

    Presents information on operating a beam diode at a high pressure. Waveforms of electron currents for N[sub2]; Information on the process of electron multiplication.

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

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

Try another library?
Sign out of this library

Other Topics